ASN Wikibase Occurrence # 43140
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| Date: | Saturday 31 July 1993 |
| Time: | 01:00 LT |
| Type: | Artic Aircraft S-1B2 |
| Owner/operator: | Flotre, Bert A. |
| Registration: | N59AT |
| MSN: | 1010 |
| Total airframe hrs: | 1650 hours |
| Engine model: | Lycoming O-320-B2B |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Johnson Glacier, AK -
 United States of America
|
| Phase: | Unknown |
| Nature: | Executive |
| Departure airport: | Anchorage, AK (Z41) |
| Paxton, AK | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
BOTH OCCUPANTS WERE CERTIFIED ALASKA GUIDES. ON-SCENE EVIDENCE SHOWED THAT THE AIRPLANE IMPACTED MOUNTAINOUS TERRAIN AT A STEEP ANGLE WHILE ROTATING TO THE LEFT. THE AIRPLANE HAD AN FAA-APPROVED FACTORY AUXILIARY 32-GAL BELLY FUEL TANK INSTALLED; NO WEIGHT & BALANCE REVISION WAS FOUND IN THE AIRPLANE'S RECORDS. AIRPLANE'S WEIGHT AT TIME OF ACCIDENT OVER 20% GREATER THAN MAX ALLOWABLE. NO FLIGHT TEST/PERFORMANCE DATA AVAILABLE FOR AIRPLANE WITH AUX TANK INSTALLED. IN ADDITION, THE AIRPLANE WAS EQUIPPED WITH TUNDRA TIRES; NO STC WAS RECORDED, NOR WAS CERTIFICATION FLIGHT TEST EVER CONDUCTED TO DETERMINE CG ENVELOPE WITH TUNDRA TIRES INSTALLED. AIRPLANE RECOVERED 8/12/93.
Probable Cause: THE PILOT'S ATTEMPTED FLIGHT IN AN AIRPLANE WHICH EXCEEDED THE MAXIMUM ALLOWABLE WEIGHT. THE HIGH MOUNTAINOUS TERRAIN WAS A FACTOR.
Accident investigation:
 |
|
Sources:
NTSB ANC93LA143
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 12:04 | ASN Update Bot | Updated [Time, Aircraft type, Operator, Other fatalities, Source, Narrative, Category, Accident report] |
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