Sunday, August 26, 2018

Cessna 182G Skylane, N2056R: Accident occurred April 23, 2017 in Manistee County, Michigan

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

Additional Participating Entities:

Federal Aviation Administration / Flight Standards District Office; Grand Rapids, Michigan
Textron Aviation; Wichita, Kansas
Continental Motors; Mobile, Alabama
McCauley Propeller Systems - Textron Aviation; Wichita, Kansas

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/N2056R



Location: Manistee, MI
Accident Number: CEN17LA178
Date & Time: 04/23/2017, 1125 EDT
Registration: N2056R
Aircraft: CESSNA 182G
Aircraft Damage: Substantial
Defining Event: Sys/Comp malf/fail (non-power)
Injuries: 4 Minor
Flight Conducted Under:  Part 91: General Aviation - Personal 

On April 23, 2017, at 1125 eastern daylight time, a Cessna 182G airplane, N2056R, experienced a loss of propeller blade pitch control during cruise flight. The pilot performed a forced landing to a field about 6 miles south-southwest of Manistee, Michigan, where the airplane nosed-over and impacted terrain. The airplane sustained substantial damage. The private pilot and three passengers received minor injuries. The airplane was registered to and operated by the pilot under 14 Code of Federal Regulations Part 91 as a personal flight that was not operating on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The flight originated from Albert J Lindberg Airport (5Y1), Hessel, Michigan, at 1010 and was destined to Hastings Airport (9D9), Hastings, Michigan.

The pilot stated that he arrived at 5Y1 about 0915 and performed a preflight of the airplane, which included inspecting the propeller. During the pre-takeoff airplane runup, he cycled the propeller three times, and the propeller functioned without anomaly.

The departure weather for the flight from 5Y1 to 9D9 had an overcast layer of 3,000 ft mean sea level and a visibility greater than 10 miles. The overcast layer diminished to clear skies as the flight progressed southbound at 2,500 ft mean sea level along the Lake Michigan shoreline to the Cross Village, Michigan. After passing Manistee, Michigan, there was a "sudden" noise from the engine, an "instant" engine power loss, and a "heavy but steady vibration". The pilot stated the he did not have time to check the cockpit [configuration/selections] but did cycle the throttle, which resulted in no change in noise level or engine power. The pilot stated that he did not shut down the engine. He performed a forced landing to a field. During the right base leg to the field, the pilot saw powerlines and felt it unsafe to turn onto a final approach leg due to the airplane altitude, so he continued to land straight ahead. The airplane touched down with a "full" stall warning horn sounding and "immediately" nosed-over.

A download of a J.P. Instruments engine data monitoring device showed that engine speed during approximately the last 1:50 minutes of the flight decreased to a range of 1,157 – 1,899 rpm.

The airplane had installations of a Continental Motors O-470-R, serial number 130002-3-R-4, engine and a 1978 manufactured McCauley C66, model number D2A34C66-NP/E-S-90AT-8, serial number 787633, propeller that had a threaded blade retention. This C66 model was first certified in June of 1964. This type of propeller (and supporting spares) is obsolete and no longer produced by McCauley.

Post-accident examination of the engine by the National Transportation Safety Board (NTSB) Investigator-In-Charge (IIC) and a Continental Motors representative revealed no mechanical anomalies that would have precluded normal operation. One of the two propeller blades was rotated about 90 degrees and was beyond its high pitch limits. Both propeller blades exhibited bending, twisting, paint scuffing, leading edge impacts, and overall propeller assembly damage is typical of that associated with low-level torsion at impact. The propeller was removed from the engine and sent to McCauley for disassembly and metallurgical examinations under the supervision of the NTSB IIC.

Both propeller blades were manufactured before 1976 and had the following serial numbers: blade 1 - K96493YS, blade 2 - K96462YS. The last propeller overhaul occurred prior to installation on the airplane on June 7, 1993 (23 years and 10 months prior to the accident). The last propeller logbook entry was dated March 27, 2017 (approximately one month prior to the accident) and indicated a time since overhaul of 1,592.12 hours.

The McCauley overhaul intervals of the C66 model propeller is cited in Service Bulletin SB137AF. The revision in effect at last recorded overhaul (SB137E) of the accident propeller and all subsequent revisions of SB137 have consistently recommended propeller overhaul at 1,500 hours or 60 calendar months, whichever occurs first.

The propeller examination revealed that the propeller had indications of several post-delivery field service events including multiple ferrule drill holes, and red oil fill modification per McCauley Service Bulletin SB152A.

The blade 1 actuating pin did not display damage or cracks. Blade 2 had a broken actuating pin (A-3149), which had indications that the pin failed in high cycle fatigue prior to impact. The pin material, hardness, and the combination cadmium and chrome plate finish was consistent with a pin manufactured sometime between start of production and May 1965. The pin material, and manufacturing methods were correct and compliant to the engineering requirements at time of production. 



Pilot Information

Certificate: Private
Age: 39, 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 Without Waivers/Limitations
Last FAA Medical Exam: 07/20/2012
Occupational Pilot: No
Last Flight Review or Equivalent: 03/26/2016
Flight Time:  894 hours (Total, all aircraft), 689 hours (Total, this make and model), 11 hours (Last 90 days, all aircraft), 11 hours (Last 30 days, all aircraft), 3 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: CESSNA
Registration: N2056R
Model/Series: 182G
Aircraft Category: Airplane
Year of Manufacture: 1964
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18255256
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 03/24/2017, Annual
Certified Max Gross Wt.: 2800 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 3902 Hours at time of accident
Engine Manufacturer: Continental
ELT: Installed, not activated
Engine Model/Series: O-470-R
Registered Owner: Pilot
Rated Power: 230 hp
Operator: Pilot
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: MBL, 621 ft msl
Distance from Accident Site: 8 Nautical Miles
Observation Time: 1056 EDT
Direction from Accident Site: 35°
Lowest Cloud Condition: Clear
Visibility: 10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 7 knots /
Turbulence Type Forecast/Actual: / None
Wind Direction: 300°
Turbulence Severity Forecast/Actual: / N/A
Altimeter Setting: 30.1 inches Hg
Temperature/Dew Point: 12°C / 3°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Hessel, MI (5Y1)
Type of Flight Plan Filed: None
Destination: Hastings, MI (9D9)
Type of Clearance: None
Departure Time: 1010 EDT
Type of Airspace: Class G

Wreckage and Impact Information

Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries: 3 Minor
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 4 Minor
Latitude, Longitude:  44.164722, 86.360556 (est)

NTSB Identification: CEN17LA178
14 CFR Part 91: General Aviation
Accident occurred Sunday, April 23, 2017 in Manistee, MI
Aircraft: CESSNA 182G, registration: N2056R
Injuries: 4 Minor.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On April 23, 2017, at 1125 eastern daylight time, a Cessna 182G, N2056R, experienced a partial loss of engine power during cruise flight. The pilot performed a forced landing to a field near Manistee, Michigan, where the airplane nosed-over and impacted terrain. The airplane sustained substantial damage. The private pilot and three passengers received minor injuries. The airplane was registered to and operated by the pilot under 14 Code of Federal Regulations Part 91 as a personal flight that was not operating on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The flight originated from Albert J Lindberg Airport (5Y1), Hessel, Michigan, at 1010 and was destined to Hastings Airport (9D9), Hastings, Michigan.

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