Wednesday, February 05, 2020

Loss of Engine Power (Partial): Bell OH-58A, N6251G; accident occurred July 02, 2016 near Brawley Municipal Airport (KBWC), Imperial County, California

Onsite Photo
Federal Aviation Administration

Onsite Photo
Federal Aviation Administration

Onsite Photo
Federal Aviation Administration

Bleed Valve Disassembly
Federal Aviation Administration

Bleed Valve Disassembly
Federal Aviation Administration

Bleed Valve Disassembly 
Federal Aviation Administration

Bleed Valve Disassembly
Federal Aviation Administration

Diaphragm Disassembly
Federal Aviation Administration

Diaphragm Damage
Federal Aviation Administration




The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entities:

Federal Aviation Administration / Flight Standards District Office; San Diego, California 
Rolls-Royce Corp; Indianapolis, Indiana

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf


Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms


http://registry.faa.gov/N6251G

Location: Brawley, CA
Accident Number: WPR16LA134
Date & Time: 07/02/2016, 0230 PDT
Registration: N6251G
Aircraft: BELL OH 58A
Aircraft Damage: Substantial
Defining Event: Loss of engine power (partial)
Injuries: 1 None
Flight Conducted Under: Part 137: Agricultural

On July 2, 2016, about 0230 Pacific daylight time, a Bell OH-58A, single-engine, agricultural helicopter, N6251G, experienced a partial loss of engine power while in the vicinity of Brawley Municipal Airport (BWC), Brawley, California. The commercial pilot was not injured. The helicopter was substantially damaged during the precautionary landing to a cropped field. The helicopter was registered to the Bank of Utah, and operated by Farm Aviation, Inc., Brawley, California, as a Title 14 Code of Federal Regulations Part 137 aerial application flight. Night visual meteorological conditions were reported about the time of the accident. A flight plan was not filed for the local flight which departed shortly before the accident.

The pilot reported that after he departed BWC with a full chemical load, he maneuvered about 1/4 mile from the airport and made a 90° turn to line up on the field to be sprayed. Shortly after lining up, the engine started to surge, and the torque meter needle was "bouncing rapidly." The pilot then initiated a precautionary landing. The helicopter landed hard in an open field and came to rest in an upright position.

Examination of the helicopter, which was conducted by a representative from the Federal Aviation Administration (FAA), revealed that the tailboom and tail rotor driveshaft had sustained impact damage consistent with a main rotor strike as a result of the hard landing. The onsite examination of the airframe and engine revealed no anomalies.

Helicopter maintenance documentation was not available during the investigation. According to the pilot, the airframe had a total operating time of 13,688 hours at the time of the accident. The engine had a total operating time of 5,618 hours. The last 100-hour inspection was performed on June 15, 2016, about 74 hours prior to the accident flight.

The helicopter was moved to a secure location and the engine was shipped to a facility for further examination.

Examination of the engine was conducted at Aero Maritime in Phoenix, Arizona on July 28, 2016. An FAA inspector and a Rolls-Royce investigator were present for the examination. The engine was set up in a test cell and during the test run the engine's bleed valve did not close at any speed; the engine produced less than 250 horsepower. When the chip detectors were removed it was revealed that the lower detector had metal debris present and the upper detector had light amounts of metal debris present. When the bleed valve was replaced with an overhauled bleed valve, an additional test run resulted in increased performance rating of about 380 hp being produced (about 7% below minimum allowable power for a serviceable engine) before reaching the maximum specified operating temperature. After the engine test run, the engine was revealed to be unserviceable due to its low power production. No component log card or historical information for the bleed valve was found. According to Rolls-Royce, the compressor, turbine and bleed valve assemblies were overhauled in July 2014, and assembled as an engine. According to Rolls-Royce, the overhaul period for the bleed valve assembly is 1,500 hours. No log cards were available for the bleed valve installed. The engine had 766 hours since overhaul at the time of the accident.

When the accident engine's bleed valve was disassembled it was found that the diaphragm had several holes and cracks. The poppet valve located in the bleed valve assembly, had radial play consistent with worn bushings. According to Rolls-Royce, the non-functioning bleed valve exhibited wear that was not consistent with a bleed valve with comparable service time.

Pilot Information

Certificate: Commercial
Age: 42, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Right
Other Aircraft Rating(s): Helicopter
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 Without Waivers/Limitations
Last FAA Medical Exam: 07/29/2015
Occupational Pilot: Yes
Last Flight Review or Equivalent: 05/30/2015
Flight Time:  7000 hours (Total, all aircraft), 1500 hours (Total, this make and model), 7000 hours (Pilot In Command, all aircraft), 150 hours (Last 90 days, all aircraft), 50 hours (Last 30 days, all aircraft), 3 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: BELL
Registration: N6251G
Model/Series: OH 58A NO SERIES
Aircraft Category: Helicopter
Year of Manufacture: 1970
Amateur Built: No
Airworthiness Certificate: Restricted
Serial Number: 70-15444
Landing Gear Type: Ski;
Seats: 1
Date/Type of Last Inspection: 06/15/2016, 100 Hour
Certified Max Gross Wt.: 3000 lbs
Time Since Last Inspection: 74 Hours
Engines: 1 Turbo Shaft
Airframe Total Time: 13688 Hours at time of accident
Engine Manufacturer: AMA/EXPR
ELT: 
Engine Model/Series: UNKNOWN ENG
Registered Owner: FARM AVIATION INC
Rated Power: hp
Operator: FARM AVIATION INC
Operating Certificate(s) Held: Agricultural Aircraft (137) 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Night
Observation Facility, Elevation: KIPL, -58 ft msl
Distance from Accident Site: 10 Nautical Miles
Observation Time: 0853 UTC
Direction from Accident Site: 198°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 9 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 80°
Turbulence Severity Forecast/Actual: 
Altimeter Setting: 29.77 inches Hg
Temperature/Dew Point: 29°C / 18°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Brawley, CA
Type of Flight Plan Filed: None
Destination: Brawley, CA
Type of Clearance: None
Departure Time:  PDT
Type of Airspace: Class G 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 32.994722, -115.518333 (est)

Runway Excursion: Cessna 421C Golden Eagle, N21SG; accident occurred April 13, 2016 at Furnace Creek Airport (L06), Death Valley National Park, California

Airplane as it came to rest. 

View of left wing and landing gear.

Recent Inspection. 



The National Transportation Safety Board did not travel to the scene of this accident.

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf 

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms 

http://registry.faa.gov/N21SG

Location: Death Valley, CA
Accident Number: WPR16LA092
Date & Time: 04/13/2016, 1105 PDT
Registration: N21SG
Aircraft: CESSNA 421C
Aircraft Damage: Substantial
Defining Event: Runway excursion
Injuries: 3 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On April 13, 2016, about 1105 Pacific daylight time, a Cessna 421C airplane, N21SG, was substantially damaged during a runway excursion while landing at Furnace Creek Airport (L06), Death Valley National Park, California. The airline transport pilot and two passengers were not injured. The airplane was privately owned and was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions prevailed, and no flight plan was filed for the flight, which originated from St. George Regional Airport (SGU), St. George, Utah, about 0945.

The pilot stated that the flight was uneventful and that he entered the airport traffic pattern to land on runway 33 at L06. He stated that the airplane touched down within the first 500 ft of runway, and that upon application of brakes, he found the right brake "very soft" and "totally ineffective." The airplane departed the end of the 3,065-foot-long runway and the nose landing gear collapsed, resulting in substantial damage to the fuselage.

The airplane was not examined following the accident and was subsequently ferried from L06 to another airport for repair. No information was made available regarding the right brake, and the reason for the malfunction during landing could not be determined.

The pilot did not submit the National Transportation Safety Board Pilot/Operator Aircraft Accident/Incident report form 6120.1. 

Pilot Information

Certificate: Airline Transport; Flight Instructor; Flight Engineer
Age: 49, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Left
Other Aircraft Rating(s): Glider
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 1 With Waivers/Limitations
Last FAA Medical Exam: 02/17/2016
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time:  11000 hours (Total, all aircraft), 435 hours (Total, this make and model), 4720 hours (Pilot In Command, all aircraft), 70 hours (Last 90 days, all aircraft), 17 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: CESSNA
Registration: N21SG
Model/Series: 421C
Aircraft Category: Airplane
Year of Manufacture: 1976
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 421C0039
Landing Gear Type: Retractable - Tricycle
Seats: 6
Date/Type of Last Inspection: 01/12/2016, 100 Hour
Certified Max Gross Wt.: 7500 lbs
Time Since Last Inspection:
Engines: 2 Reciprocating
Airframe Total Time: 5576 Hours as of last inspection
Engine Manufacturer: CONT MOTOR
ELT: Installed, not activated
Engine Model/Series: GTSIO-520 SER
Registered Owner: On file
Rated Power: 375 hp
Operator: On file
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KDRA, 3230 ft msl
Distance from Accident Site: 42 Nautical Miles
Observation Time: 1753 UTC
Direction from Accident Site: 77°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 9 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 240°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 30.06 inches Hg
Temperature/Dew Point: 21°C / 6°C
Precipitation and Obscuration:
Departure Point: St George, UT (SGU)
Type of Flight Plan Filed: None
Destination: Death Valley, CA (L06)
Type of Clearance: None
Departure Time: 0945 MDT
Type of Airspace: Class G

Airport Information

Airport: Furnace Creek Airport (L06)
Runway Surface Type: Asphalt
Airport Elevation: -210 ft
Runway Surface Condition: Dry
Runway Used: 33
IFR Approach: None
Runway Length/Width: 3065 ft / 70 ft
VFR Approach/Landing: Full Stop; Traffic Pattern 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 2 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 3 None
Latitude, Longitude: 36.460556, -116.879722 (est)

Cessna 208B Grand Caravan, N454SF: Incident occurred February 04, 2020 at Hooper Bay Airport (PAHP), Alaska


Federal Aviation Administration / Flight Standards District Office; Anchorage, Alaska

Aircraft impacted the ground causing a propeller strike.

Grant Aviation

https://registry.faa.gov/N454SF

Date: 05-FEB-20
Time: 01:00:00Z
Regis#: N454SF
Aircraft Make: CESSNA
Aircraft Model: 208
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: UNKNOWN
Activity: ON DEMAND
Flight Phase: TAKEOFF (TOF)
Operation: 135
City: HOOPER BAY
State: ALASKA

ANCHORAGE, Alaska (KTUU) — A Grant Aviation flight crashed during takeoff and slid off the runway in Hooper Bay on Tuesday.

Grant Aviation Vice President of Operations Dan Knesek confirmed that the flight left the end of the runway in Hooper Bay late Tuesday afternoon.

National Transportation Safety Board officials separately confirmed that aircraft involved was a Cessna 208B Grand Caravan with eight people on board.

Knesek and National Transportation Safety Board Alaska Chief Clint Johnson say no injuries have been reported by passengers or the pilot.

"We're taking care of the pilot and all the passengers and getting all that taken care of and working with the National Transportation Safety Board," Knesek said.

The National Transportation Safety Board is investigating.

Original article can be found here ➤ https://www.ktuu.com

No injuries were reported Tuesday afternoon when a Grant Aviation Cessna 208B Grand Caravan crashed during takeoff in Hooper Bay, according to a Federal Aviation Administration notice posted early Wednesday.

The plane “impacted the ground causing a prop strike," the notice said. There were seven passengers and a pilot on board.

Dan Knesek, director of operations at Grant Aviation, said the commercial flight took off in Hooper Bay around 4 p.m. and was headed to Chevak. Knesek said it’s unclear if or how long the plane was airborne.

“The investigation is just starting,” he said. “We’re working with the National Transportation Safety Board and Federal Aviation Administration as we speak.”

Hooper Bay is a village on the Bering Sea coast in Southwest Alaska.

Original article can be found here ➤ https://www.adn.com

Piper PA-28-181, N4400F: Accident occurred February 04, 2020 at Falcon Field Airport (KFFZ), Mesa, Arizona

Federal Aviation Administration / Flight Standards District Office; Scottsdale, Arizona

CAE Oxford Aviation Academy Phoenix Inc

https://registry.faa.gov/N4400F

NTSB Identification: WPR20CA088
14 CFR Part 91: General Aviation
Aircraft: PIPER PA-28-181, registration: N4400F

NTSB investigators will use data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator, and will not travel in support of this investigation to prepare this aircraft accident report.

Aircraft during soft field takeoff drifted and impacted parked Piper PA-28-181 N4403L which slid into parked Diamond DA-40 Diamond Star N967DS. 

Date: 04-FEB-20
Time: 22:15:00Z
Regis#: N4400F
Aircraft Make: PIPER
Aircraft Model: PA28
Event Type: ACCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: SUBSTANTIAL
Activity: INSTRUCTION
Flight Phase: TAKEOFF (TOF)
Operation: 91
City: MESA
State: ARIZONA

Piper PA-46-500TP Malibu Meridian, N767TP: Incident occurred February 04, 2020 at Anoka County-Blaine Airport (KANE), Minnesota

Federal Aviation Administration / Flight Standards District Office; Minneapolis, Minnesota

Aircraft landed and gear collapsed skidding off the runway into the snow.

TeamAir LLC

https://registry.faa.gov/N767TP

Date: 04-FEB-20
Time: 14:11:00Z
Regis#: N767TP
Aircraft Make: PIPER
Aircraft Model: PA46
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: UNKNOWN
Activity: PERSONAL
Flight Phase: LANDING (LDG)
Operation: 91
City: MINNEAPOLIS
State: MINNESOTA

Bellanca 17-30A, N4025B: Incident occurred February 04, 2020 at Elko Regional Airport (KEKO), Nevada

Federal Aviation Administration / Flight Standards District Office; Reno, Nevada

Aircraft gear collapsed on landing.

Red Star Warbirds LLC

https://registry.faa.gov/N4025B

Date: 04-FEB-20
Time: 18:00:00Z
Regis#: N4025B
Aircraft Make: BELLANCA
Aircraft Model: 17
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: MINOR
Activity: PERSONAL
Flight Phase: LANDING (LDG)
Operation: 91
City: ELKO
State: NEVADA