ANC97LA033

NTSB accident investigation · Cessna 337T · Fairbanks, AK · March 9, 1997

Accident · No injuriesLimited investigationFinal report
Date
March 9, 1997, 19:09 local (23:09 UTC)
Place
Fairbanks, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N922EJCessna 337T
Weather
Visual (VMC) · Night/dark
Status
Completed · report May 29, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19970309026979A
Case key
2970

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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Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

a leaking landing gear actuator seal, which resulted in an inability of the landing gear to lock in the down position. Failure of the emergency gear extension handle was a related factor.

Analysis

The pilot departed on a local flight at night, but discovered the landing gear handle did not return to the neutral position within the normal time. The 'gear up' annunciator light did not illuminate. A pass near the airport tower confirmed the nose gear appeared down, the main landing gear doors were open, and the gear appeared not to be positioned normally. The pilot attempted to use the emergency hydraulic gear pump, but the pump handle broke off as he was attempting to activate the pump. The pilot contacted his maintenance provider, who recommended several options and methods to get the main gear to lock down. These were unsuccessful, and the pilot elected to land on a snow covered ski strip. The lower portion of the right vertical stabilizer and right rudder received damage when the airplane touched down in a nose high attitude. A postaccident examination of the airplane revealed a leaking seal in a gear actuator.

Factual narrative

On March 9, 1997, about 1909 Alaska standard time, a Cessna 337T, N922EJ, received substantial damage when the pilot performed an emergency landing at the Fairbanks International Airport, Fairbanks, Alaska. The airplane was being operated as a visual flight rules (VFR) local area personal flight when the accident occurred. The certificated private pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight departed Fairbanks about 1700.

In the pilot/operator report (NTSB form 6120.1/2) submitted by the pilot, he reported that after departure, the gear handle did not return to the neutral position within the normal time. The "gear up" annunciator light did not illuminate. A pass near the airport tower confirmed the nose gear appeared down, but the main landing gear doors were open and the gear appeared not to be positioned normally. The pilot contacted his maintenance provider who recommended several options and methods in order to get the main gear to lock down. These proved unsuccessful and the pilot elected to land on the snow covered ski strip, runway 19, at Fairbanks. The lower portion of the right vertical stabilizer and right rudder received damage when the airplane touched down in a nose high attitude.

A Federal Aviation Administration (FAA) airworthiness inspector, Fairbanks Flight Standards District Office (FSDO), reported the pilot could not raise the main landing gear of the airplane. The pilot attempted to use the emergency hydraulic gear pump but broke the pump handle off while attempting to activate the pump. The nose wheel was down and locked but the main gear remained unlatched. A postaccident examination of the airplane revealed a leaking gear actuator seal.

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.

Airframe/component/system failure/malfunctionTakeoff - initial climb
Landing gear,main gear - leakCause
Landing gear,main gear - unlockedCause
Landing gear,emergency extension assembly - failureFactor
Main gear collapsedLanding - flare/touchdown

Aircraft

Registration
N922EJ
Reported as
Cessna 337T
Category
Airplane
Serial number
337-0944
Airframe hours
1,498
Engine
Continental TSIO-360-A, 210 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Phillip Granberry
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 24, 1997 · 3 hours before
Departed
FAI
Airport
FAI · Fairbanks International, runway 19, 3,978 × 75 ft, gravel

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
44
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,101 total · 258 in this make and model · 1,059 as pilot in command · 3 in the last 90 days · 3 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
173° at 5 knots
Visibility
10 statute miles
Lowest ceiling
4,000 ft broken
Temperature
3 °F, dew point -0 °F
Altimeter
30.00 inHg
Observed at
FAI

FAA reports on this event · 1

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

Other investigations on N922EJ · 1

Matched to the same aircraft by N-number and date.