Flugunfall 21 FEB 1982 einer de Havilland Canada DHC-6 Twin Otter 300 N127PM

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Accident

Last updated: 20 June 2013

Status:	Schlussbericht
Datum:	21 FEB 1982
Zeit:	15:33 EST
Flugzeugtyp:	de Havilland Canada DHC-6 Twin Otter 300
Fluggesellschaft:	Pilgrim Airlines
Kennzeichen:	N127PM
Werknummer:	105
Baujahr:	1968
Betriebsstunden:	27015
Triebwerk:	2 Pratt & Whitney Canada PT6A-27
Besatzung:	Todesopfer: 0 / Insassen: 2
Fluggäste:	Todesopfer: 1 / Insassen: 10
Gesamt:	Todesopfer: 1 / Insassen: 12
Sachschaden:	Zerstört
Konsequenzen:	Written off (damaged beyond repair)
Unfallort:	Scituate Reservoir, RI (USA)
Flugphase:	Während des Fluges (ENR)
Betriebsart:	Inländischer planmäßiger Passagierflug
Flug von:	Groton-New London Airport, CT (GON), USA
Flug nach:	Boston-Logan International Airport, MA (BOS/KBOS), USA
Flugnummer:	458

Unfallbericht:
At 4000 feet light icing on the windshield was noted, and the de-icing system was activated. After two cycles of de-icing, alcohol was smelled in the cockpit, and smoke was coming up from the control yoke. An emergency landing was attempted at Providence, RI but smoke and flames forced the crew to land on 10-12 inch thick ice on a reservoir. By then, heavy black smoke poured in the cockpit and fire was seen. Upon landing, the left main gear collapsed and the right wing was sheared off.

PROBABLE CAUSE: "The deficient design of the isopropyl alcohol windshield washer/de-icer system and the inadequate maintenance of the system which resulted in an in-flight fire. The ignition source of the fire was not determined."

Informationsquelle:
» NTSB-AAR-82-07

Official accident investigation report

investigating agency:	National Transport Safety Bureau (NTSB) - USA
report status:	Final
report number:	NTSB/AAR-82-07
download report:	Pilgrim Airlines Flight 458, DeHavilland DHC-6-100, N127PM, near Providence, Rhode Island, February 21, 1982. (NTSB/AAR-82-07)

Sicherheitsempfehlungen

NTSB issued 6 Safety Recommendations

Show all AD's and Safety Recommendations

Fotos

Map

This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Groton-New London Airport, CT to Boston-Logan International Airport, MA as the crow flies is 143 km (89 miles).

languages:

Issued: 13-JUL-1982	To: FAA	A-82-056
ISSUE AN AIRWORTHINESS DIRECTIVE TO REQUIRE A REDESIGN AND MODIFICATION OF ISOPROPYL ALCOHOL WINDSHIELD DEICING SYSTEMS INSTALLED ON DHC-6 AIRCRAFT TO ELIMINATE THE POTENTIAL FOR ALCOHOL LEAKAGE OR, IF PRACTICABLE, TO REQUIRE REPLACEMENT OF THESE SYSTEMS WITH THE ELECTRICALLY HEATED WINDSHIELDS OFFERED BY THE MANUFACTURER AS AN ALTERNATIVE INSTALLATION. (Closed - Acceptable Action)
Issued: 13-JUL-1982	To: FAA	A-82-057
REVIEW AND EVALUATE THE DESIGN OF ALL ISOPROPYL ALCOHOL WINDSHIELD DEICING SYSTEM INSTALLATIONS ON AIRCRAFT TO VERIFY COMPLIANCE WITH APPLICABLE FEDERAL AVIATION REGULATIONS PERTAINING TO FLAMMABLE FLUID FIRE PROTECTION, AND TAKE ACTION TO CORRECT ANY DEFICIENCIES FOUND. (Closed - Acceptable Action)
Issued: 27-JUL-1982	To: FAA	A-82-070
ISSUE AN OPERATIONS BULLETIN REQUIRING PRINCIPAL OPERATIONS INSPECTORS OF 14 CFR PART 135 OPERATORS TO DETERMINE (Closed - Acceptable Alternate Action)
Issued: 27-JUL-1982	To: FAA	A-82-071
ISSUE A MAINTENANCE BULLETIN CALLING ATTENTION TO THE NEED FOR PROPERLY FUNCTIONING PUBLIC ADDRESS SYSTEMS TO ASSURE THAT SAFETY MESSAGES BY THE CREW ARE UNDERSTANDABLE IN ALL PARTS OF THE CABIN BOTH ON THE GROUND AND IN FLIGHT. (Closed - Acceptable Action)
Issued: 27-JUL-1982	To: FAA	A-82-072
AMEND 14 CFR 135.155 TO MAKE THE REQUIREMENTS REGARDING THE ACCESSIBILITY AND LOCATION OF FIRE EXTINQUISHERS IN PASSENGER COMPARTMENTS OF AIRCRAFT IN COMMUTER SERVICE AT LEAST AS STRINGENT AS THE REQUIREMENTS IN 14 CFR 91.193 (C)(4). (Closed - Acceptable Alternate Action)
Issued: 27-JUL-1982	To: FAA	A-82-073
REVIEW THE TRAINING OF AND THE SURVEILLANCE PROCEDURES FOLLOWED BY FEDERAL AVIATION ADMINISTRATION INSPECTORS AND MODIFY THEM IF NECESSARY TO PROVIDE INCREASED EMPHASIS ON THE PROVISIONS OF 14 CFR PART 135 WITH REGARD TO OCCUPANT SAFETY AND SAFETY EQUIPMENT. (Closed - Acceptable Action)