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Aviation safety reports, made easier to study

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NTSB Report

March 9, 2005 · Reims Aviation F406 · N6591R

Nome, AK

Overview

Report Status
Final with probable cause
Event Type
Incident
Date
March 9, 2005
Injury Outcomes
No injuries (1 uninjured)
Location
Nome, AK
Aircraft
Reims Aviation F406
Tail Number
N6591R
Operator
Hageland Aviation
Injuries
None
Aircraft Damage
Minor
NTSB Number
ANC05IA048

The airline transport certificated pilot of the Title 14, CFR Part 91, positioning flight reported getting an unsafe nose gear indication prior to landing, and was unable to extend the nose gear. He landed the airplane with the nose wheel retracted. An inspection of the nose landing gear up lock actuator bracket by the National Transportation Safety Board investigator-in-charge, revealed that both the left and right sides of the bracket had fatigue cracks that propagated from the top of each side to the top of a lightening hole near the center of each side. The lower portion of the bracket had distorted, changing its position relative to the nose wheel up lock mechanism, which rendered the up lock unable to disengage. Maintenance records indicated compliance with inspection guidelines for the affected area by the operator. The pilot reported that there were no other mechanical problems with the airplane prior to the incident.

NTSB Probable Cause

The failure of the nose gear up lock actuator bracket during the landing approach due to fatigue cracking, which resulted in a nose wheel up landing. A factor associated with the incident is the mechanical binding of the nose wheel locking mechanism.

Full Narrative

On March 9, 2005, about 1830 Alaska standard time, a Reims Aviation F406 airplane, N6591R, sustained minor damage during a landing with the nose wheel retracted, at the Nome Airport, Nome Alaska. The airplane was being operated by Hageland Aviation of Anchorage, Alaska, as a visual flight rules (VFR) positioning flight under Title 14, CFR Part 91, when the incident occurred. The solo airline transport pilot was not injured. Visual meteorological conditions prevailed, and a VFR flight plan was filed. The flight departed Savoonga Landing Strip, Savoonga, Alaska, about 1745. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on March 9, the director of maintenance for the operator said the pilot reported getting an unsafe nose gear indication prior to landing, and when he was unable to correct the problem, he landed the airplane with the nose wheel retracted. During a telephone conversation with the IIC on March 10, the FAA maintenance inspector who examined the airplane said the nose gear up-lock bracket had fractured and distorted, and would not allow the nose gear up-lock to disengage. An inspection of the nose landing gear up lock actuator bracket (PN 5727110-9) by the IIC revealed that the bracket left side (PN 5713040-14 ) and right side (PN 5713040-15) both had fatigue cracks that propagated from the top of each side to the top of a lightening hole near the center of each side. The lower portion of the bracket had distorted, changing its position relative to the nose wheel up-lock mechanism, which rendered the up-lock unable to disengage. According to the operator's maintenance records, the operator had complied with the inspection guidelines for the nose gear area set forth in Service Bulletin CA00-10. The airplane was built by Reims Aviation in France, under license of the Cessna Aircraft Corporation. According to the operator, the airplane is no longer supported by Reims Aviation, and according to a Cessna representative, they do not directly support Reims manufactured airplanes, but do have parts available for similar Cessna airplanes.

Flight

Event TypeIncident
Event Time13:30 AKST
Nearest AirportNOME (0nm)
Runway02
Runway Length5576 ft
Runway Width150 ft
Flight Plan FiledVFR
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftReims Aviation F406
Tail NumberN6591R
Aircraft CategoryAir
DamageMinor
OperatorHageland Aviation
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsPratt & Whitney Canada · PT6A-112 · Turboprop · 528
Seats10

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 36 · First Class · None

Conditions

ConditionsVMC
LightDaylight
Wind20° @ 14 kt, gusting 21 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point16 C / 3 C
Altimeter29.21 inHg
Observation Time21:53
Weather SourceWFAC

Appendix: Source Data