Sunday, October 11, 2020

Loss of Engine Power (Partial): Cessna 172, N7267A; accident occurred October 13, 2019 near Palmer Municipal Airport (PAAQ), Alaska


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

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Anchorage, Alaska

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Palmer, AK
Accident Number: ANC20LA002
Date & Time: 10/13/2019, 1620 AKD
Registration: N7267A
Aircraft: Cessna 172
Aircraft Damage: Substantial
Defining Event: Loss of engine power (partial)
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On October 13, 2019, about 1620 Alaska daylight time, a Cessna 172 airplane, N7267A, sustained substantial damage when it was involved in an accident about 15 nautical miles southeast of the Palmer Municipal Airport (PAAQ) Palmer, Alaska. The private pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

The pilot reported that, after departing the off-airport airstrip near the Knik Glacier, he made a low approach to the same airstrip before continuing the flight to Birchwood Airport (PABV) Birchwood, Alaska. About 15 minutes later, while in cruise flight, the engine began to run rough and the rpm "rolled back." In an attempt to restore engine power, he applied carburetor heat, confirmed a rich mixture, checked the fuel tank levels, and placed the fuel selector from BOTH to the LEFT tank. In addition, he verified the oil pressure, confirmed the magneto switch was selected to BOTH, and that the primer was in and locked. The pilot subsequently selected an all-terrain vehicle trail as a forced landing site. Just before touchdown, about 15 feet above the ground, the left wing struck a small tree and the airplane yawed to the left and touched down in a nose low, off-center angle. Subsequently, the right main landing gear and nose-gear separated, and the right wing struck the ground; the pilot was able to egress the airplane without further incident. The airplane sustained substantial damage to both wings and the fuselage.

A post-accident examination of the engine, which included a test run, revealed no evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation.

According to a carburetor icing probability chart, using the nearest weather observation station located about 15 nautical miles away, an airplane operating in the ambient conditions near the accident site would expect carburetor icing at cruise power, and serious icing at glide power.

Pilot Information

Certificate: Private
Age: 50, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 12/20/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 05/15/2018
Flight Time:   (Estimated) 190 hours (Total, all aircraft), 144 hours (Total, this make and model), 125 hours (Pilot In Command, all aircraft), 26 hours (Last 90 days, all aircraft), 11 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Cessna
Registration: N7267A
Model/Series: 172 Undesignated
Aircraft Category: Airplane
Year of Manufacture: 1956
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 29367
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 05/05/2019, Annual
Certified Max Gross Wt.: 2299 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 2818.85 Hours as of last inspection
Engine Manufacturer: Continental
ELT: C126 installed, activated, aided in locating accident
Engine Model/Series: O-300-B
Registered Owner: R&R Aircraft LLC
Rated Power: 145 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: PAAQ, 230 ft msl
Distance from Accident Site: 15 Nautical Miles
Observation Time: 2353 UTC
Direction from Accident Site: 307°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR): 
Wind Speed/Gusts: 3 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 200°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 29.97 inches Hg
Temperature/Dew Point: 5°C / -3°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Palmer, AK (4AK6)
Type of Flight Plan Filed: None
Destination: Birchwood, AK (BCV)
Type of Clearance: None
Departure Time: 1440 AKD
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: 61.450278, -148.683333 (est)

1 comment:

  1. The old bird (64) is probably kaput. At least the pilot is OK.