ASN Wikibase Occurrence # 132912
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Date: | Tuesday 29 November 1994 |
Time: | 16:32 LT |
Type: | Bell 206B |
Owner/operator: | International Paper Company |
Registration: | N2183P |
MSN: | 3470 |
Year of manufacture: | 1981 |
Total airframe hrs: | 7455 hours |
Engine model: | ALLISON 250-C20 B |
Fatalities: | Fatalities: 0 / Occupants: 4 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Natchitoches, LA -
United States of America
|
Phase: | En route |
Nature: | Unknown |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:DURING A MAINTENANCE TEST FLIGHT, THE HELICOPTER EXPERIENCED A LOSS OF ENGINE POWER DUE TO MECHANICAL REASONS. THE MAINTENANCE HISTORY REVEALED THAT THE ENGINE HAD EXPERIENCED A SERIES OF COMPRESSOR STALLS DURING THE LAST 132 HOURS OF FLIGHT. COMPANY MANAGEMENT ELECTED TO DEFER REQUIRED MAINTENANCE UNTIL THEIR 'BUSY SEASON WAS OVER.' THE METALLURGICAL ANALYSIS SHOWED THAT INTERGRANULAR CORROSION AND EROSION OF THE STATOR VANES COMBINED TO EFFECTIVELY WEAKEN THE INDIVIDUAL VANES STRUCTURALLY. A COMPRESSOR STALL WAS EXPERIENCED. THE PILOT PERFORMED AN AUTOROTATION AND DURING TOUCHDOWN THE MAIN ROTOR BLADES SEVERED THE TAIL BOOM.
Probable Cause: THE DELAYED FLARE AND THE IMPROPER TOUCHDOWN BY THE PILOT IN COMMAND. FACTORS WERE THE OPERATION OF THE AIRCRAFT WITH KNOWN DEFICIENCIES BY THE OPERATOR AND THE PILOT, DELAYED MAINTENANCE, AND, AN ENGINE COMPRESSOR ASSEMBLY STALL, COMBINED WITH EROSION AND CORROSION OF THE STATOR VANES WHICH RESULTED IN A COMPLETE LOSS OF POWER.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | FTW95LA056 |
Status: | Investigation completed |
Duration: | 6 months |
Download report: | Final report |
|
Sources:
NTSB FTW95LA056
History of this aircraft
Other occurrences involving this aircraft
20 October 1983 |
N2183P |
International Paper Company |
0 |
Nr. Mcadams, MS |
|
sub |
27 August 2019 |
N218GH |
Angel City Air, Inc. |
0 |
Gillespie Field Airport (SEE/KSEE), San Diego County, CA |
|
sub |
Location
Revision history:
Date/time | Contributor | Updates |
21-Dec-2016 19:25 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
09-Apr-2024 18:03 |
ASN Update Bot |
Updated [Time, Other fatalities, Source, Narrative, Category, Accident report] |
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