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NTSB Report

August 1, 1995 · Grumman G-44 · N17481

Kodiak, AK

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
August 1, 1995
Injury Outcomes
No injuries (2 uninjured)
Location
Kodiak, AK
Aircraft
Grumman G-44
Tail Number
N17481
Operator
Penair
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC95LA122

THE CERTIFICATED COMMERCIAL PILOT AND A PASSENGER WERE DEPARTING A HARD SURFACED RUNWAY IN AN AMPHIBIOUS AIRPLANE FOR AN ON-DEMAND CHARTER FLIGHT. DURING THE TAKEOFF ROLL, THE AIRPLANE LURCHED TO THE RIGHT. THE PILOT APPLIED THE LEFT BRAKE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE WITHOUT ANY RESPONSE. HE ABORTED THE TAKEOFF, BUT WAS UNABLE TO PREVENT THE AIRPLANE FROM GROUND LOOPING TO THE RIGHT. INSPECTION OF THE AIRPLANE REVEALED THAT THE LEFT WHEEL RIM WAS BROKEN NEAR THE HUB BOLT HOLES. A METALLURGICAL EXAMINATION OF THE WHEEL DID NOT REVEAL ANY EVIDENCE OF FATIGUE. ALL FRACTURE SURFACES EXHIBITED EVIDENCE OF OVERLOAD.

NTSB Probable Cause

OVERLOAD FAILURE OF THE MAIN LANDING GEAR WHEEL.

Full Narrative

On July 31, 1995, at 1840 Alaska daylight time, an amphibious Grumman G-44, N17481, crashed during takeoff at Kodiak airport, Kodiak, Alaska. The airplane was being operated as a visual flight rules (VFR) cross- country on-demand passenger flight to Danger Bay, Alaska, under Title 14 CFR Part 135 when the accident occurred. The airplane, operated by Peninsula Airways Inc., received substantial damage. The certificated commercial pilot and the sole passenger were not injured. Visual meteorological conditions prevailed. Company VFR flight following procedures were in effect. The operator reported that the pilot was departing on runway 07. During the takeoff run, the pilot noticed a loud noise and the airplane lurched to the right. To maintain directional control of the airplane, the pilot aborted the takeoff and attempted to apply the left brake without any response. The pilot was unable to prevent the airplane from ground looping to the right. The left wing float and tail wheel were damaged. The left wingtip contacted the runway and was bent upward. Inspection of the airplane revealed that the left wheel rim was broken near the bolt holes. The wheel rim was submitted to the National Transportation Safety Board's Materials Laboratory for examination. The examination did not reveal any evidence of fatigue. All fracture surfaces exhibited evidence of overload.

Flight

Event TypeAccident
Event Time18:40 AKDT
Nearest AirportKODIAK (0nm)
Runway7
Runway Length7562 ft
Runway Width150 ft
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftGrumman G-44
Tail NumberN17481
Aircraft CategoryAir
DamageSubstantial
OperatorPenair
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · GO-435-C2B2 · Reciprocating · 260
Seats6

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 48 · First Class

Conditions

ConditionsVMC
LightDaylight
Wind110° @ 12 kt
Visibility15 sm
CeilingOvercast 5000 ft
Temperature / Dew Point52 / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data