DEN82DA044

NTSB accident investigation · Piper PA-31P · Gunnison, CO · March 15, 1982

Accident · No injuriesFinal report
Date
March 15, 1982, 15:55 local (22:55 UTC)
Place
Gunnison, CO
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N12JPPiper PA-31P
Weather
Visual (VMC) · Day
Status
Completed · report March 15, 1983
Report
Approved by Office Director
FAA report
19820315005779A
Case key
70927

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Analysis

While enroute to addison, TX, the pilot noticed a fluctuation in the engine exhaust gas temperature gauge, followed by the tachometer dropping to zero. The pilot also observed smoke emanating from the engine nacelle and proceeded to secure the engine and feather the propeller and accomplish a successfull emergency landing. Further examination disclosed two blow-out holes in the lower area of the transition tube assembly that allowed hot engine exhaust to escape into the engine compartment. The overboard exhaust pipe clamps, cowl flap motor and actuating rod were damaged by fire and fell from the aircraft while in flight.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - mech failure/malfCruise - normal
Engine instruments,egt/tot gage - fluctuatingFactor
Emergency procedure - performedPilot in commandFactor
Engine instruments,tachometer - improperFactor
Nacelle/pylon,main frame - smokeFactor
FireCruise - normal
Exhaust system,terminal - burstCause
Exhaust system,clamp - overtemperatureCause
Forced landingLanding - flare/touchdown

Aircraft

Registration
N12JP
Reported as
Piper PA-31P
Category
Airplane
Serial number
31P68
Airframe hours
2,154
Engine
Lycoming TIGO-541-E1A, 425 horsepower, reciprocating
Damage
Substantial damage
Fire
In-Flight
Flight
Personal · Part 91
Operator
Gerald Langford/Cindell Noel R
Registered owner
Gerald Langford/Cindell Noel R
Departed
C · Gunnison, CO
Destination
C · Addison, TX
Flight plan
IFR
Airport
Gunnison County, runway 24, 7,198 × 100 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
46
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
2,500 total · 365 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
10° at 4 knots
Visibility
20 statute miles
Temperature
95 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.