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ASN Wikibase Occurrence # 190684
Last updated: 19 October 2019
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Date:11-FEB-1987
Time:23:17
Type:Silhouette image of generic B741 model; specific model in this crash may look slightly different
Boeing 747-122
Owner/operator:United Airlines
Registration: N4718U
C/n / msn: 19879/139
Fatalities:Fatalities: 0 / Occupants: 241
Other fatalities:0
Aircraft damage: None
Category:Accident
Location:Detroit, MI -   United States of America
Phase: Standing
Nature:Domestic Scheduled Passenger
Departure airport:ORD
Destination airport:EWR
Investigating agency: NTSB
Narrative:
DRG FLT, UNITED FLT 108 RECD INFO OF A BOMB THREAT. DUE TO A SHORT TIME LIMIT, SPECIFIED IN THE THREAT, THE FLT DIVERTEDTO DETROIT & THE SLIDES WERE USED TO EVACUATE THE AIRCRAFT; 8 OF 10 SLIDES DEPLOYED NMLY & WERE USED. THE SLIDE AT DOOR 4R DIDN'T INFLATE & WASN'T USED. THE FLT ATTENDANT (F/A) AT DOOR 5R PERCEIVED THAT THE SLIDE (SLIDE/RAFT) AT THAT LCTN WAS INFLATING SLOWLY. SHE PULLED WHAT SHE THOUGHT WAS THE MANUAL INFLATION HANDLE (MIH) & HEARD A HISSING SOUND. SHE THEN SENT 2 HELPERS (PAX) DWN THE SLIDE. AS THEY EGRESSED, THE SLIDE SEPD FM THE AIRCRAFT & FELL TO THE GND; 1 OF THE 2 RECD A SERIOUS BACK INJURY. AS OTR SLIDES WERE USED, 2 OTR PAX RECD SERIOUS LEG INJURIES & 16 PAX RECD MINOR INJURIES. AN INV REVEALED THE F/A AT DOOR 5R INADVERTENTLY PULLED THE RELEASE HANDLE (RH) WHEN SHE ATMTD TO USE THE MIH. BOTH HANDLES WERE MADE OF CANVAS MTRL & WERE ABOUT THE SAME SIZE. THE MIH WAS RED WITH A PIECE OF WHITE MTRL MARKED 'PULL' IN RED LTRS; THE RH WAS WHITE & WAS ALSO MARKED 'PULL' IN RED LTRS. NO REASON WAS FND FOR THE SLIDE AT DOOR 4R NOT TO ENFLATE.

Sources:

NTSB

Safety recommendations:

Safety recommendation A-88-106 issued 21 September 1988 by NTSB to FAA
Safety recommendation A-88-107 issued 21 September 1988 by NTSB to FAA
Safety recommendation A-88-108 issued 21 September 1988 by NTSB to FAA


Images:

Photo of N4718U courtesy AirHistory.net


Chicago - O'Hare International (KORD / ORD)
2 December 1973; (c) R.A.Scholefield

Revision history:

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