Accident Piper PA-31T Cheyenne II N91TW,
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ASN Wikibase Occurrence # 24911
 
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Date:Sunday 17 January 1982
Time:14:35
Type:Silhouette image of generic PAY2 model; specific model in this crash may look slightly different    
Piper PA-31T Cheyenne II
Owner/operator:Private
Registration: N91TW
MSN: 31T-7820078
Total airframe hrs:340 hours
Engine model:P & W PT6A-28
Fatalities:Fatalities: 0 / Occupants: 3
Aircraft damage: Destroyed
Category:Accident
Location:1/2 mile from Delta Municipal Airport, Delta, Millard County, Utah -   United States of America
Phase: Approach
Nature:Private
Departure airport:Delta Municipal Airport, Delta, Utah (DTA/KDTA)
Destination airport:Las Vegas, Nevada (LAS/KLAS)
Confidence Rating: Information is only available from news, social media or unofficial sources
Narrative:
Written off (destroyed) January 17, 1982 when crashed at Delta, Utah. Although the aircraft caught fire on the ground, at or shortly after impact, the three persons on board (pilot and two passengers) survived with minor injuries. According to the following excerpt from the official NTSB report into the accident:

"APPROXIMATELY 1/2 MILE FROM THE AIRPORT, AFTER TAKEOFF, THE PILOT NOTICED THE LEFT FRONT BAGGAGE DOOR PARTLY OPEN & MADE A LEFT TURN BACK TOWARD THE AIRSTRIP. AFTER THE TURN, THE BAGGAGE DOOR CAME COMPLETELY OPEN, THE LEFT WING DROPPED IMMEDIATELY & THE AIRCRAFT STALLED. THE PILOT ADDED FULL POWER & LOWERED THE NOSE.

WHEN HE RAISED THE NOSE NEAR THE GROUND, THE AIRCRAFT SHUDDERED & CRASHED. TWO RESCUE PERSONNEL, BOTH CERTIFICATED PILOTS, ARRIVED SHORTLY AFTER THE ACCIDENT & FOUND THE NOSE BAGGAGE DOOR IN THE UNLOCKED POSITION WITH THE BAYONET PINS RETRACTED.

A PIPER REPRESENTATIVE STATED THAT IF THE LEFT SIDE NOSE BAGGAGE DOOR OF A PA-31T OPENED IN FLIGHT THERE WOULD BE THE LIKELIHOOD OF AN INTERRUPTION TO THE SMOOTH AIRFLOW THROUGH THE PROP, POSSIBLY REDUCING THE THRUST PRODUCED BY THE BLADES.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:

LOSS OF AIRSPEED, NOT MAINTAINED: PILOT IN COMMAND"

Contributing Factors:
DOOR,CARGO/BAGGAGE..UNLOCKED
AIRCRAFT PRE FLIGHT..INADEQUATE..PILOT IN COMMAND
DOOR,CARGO/BAGGAGE..OPEN
PRECAUTIONARY LANDING..PERFORMED..PILOT IN COMMAND
AIRCRAFT PERFORMANCE..DETERIORATED "

Sources:

1. NTSB Identification: DEN82FA020 at https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20020917X01967&key=1
2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=91TW
3. [LINK NOT WORKING ANYMORE:http://www.baaa-acro.com/1982/archives/crash-of-a-piper-pa-31-cheyenne-in-delta/]
4. https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20020917X01967&AKey=1&RType=Summary&IType=FA

Revision history:

Date/timeContributorUpdates
27-Sep-2008 01:00 ASN archive Added
21-Dec-2016 19:14 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:16 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
21-Dec-2016 19:20 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
02-Aug-2017 18:24 TB Updated [Aircraft type, Cn, Source, Narrative]
10-Sep-2017 20:49 Dr. John Smith Updated [Time, Operator, Total occupants, Location, Phase, Nature, Departure airport, Destination airport, Source, Narrative]

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