ASN Wikibase Occurrence # 167765
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| Date: | Wednesday 30 January 2008 |
| Time: | 20:22 LT |
| Type: |  Boeing 757-223 |
| Owner/operator: | American Airlines |
| Registration: | N624AA |
| MSN: | 24582/297 |
| Year of manufacture: | 1990 |
| Engine model: | Rolls-Royce RB211-53/5E4B |
| Fatalities: | Fatalities: 0 / Occupants: 146 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Palm Beach International Airport, FL (KPBI) -
 United States of America
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | San Juan, PR (KSJU) |
| Philadelphia International Airport, PA (PHL/KPHL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
American Airlines flight AA1738, a Boeing 757-200, declared an emergency due to smoke in the cockpit and diverted to Palm Beach International Airport (KPBI), West Palm Beach, Florida.
During cruise flight the crew experienced smoke in the cockpit, none of it coming from an obvious place, followed by the fracture of the inner pane of the first officer's windshield. They declared an emergency and diverted the airplane to a local airport where an uneventful landing was made. Examination of the widow revealed evidence of arcing at the upper, aft (J1) and upper, forward (J4) windshield heat terminal locations and inner pane fracture initiation beneath the upper, forward (J4) terminal block. The initiation point for the arcing at both terminal locations could not be identified due to the damage sustained.
Probable Cause: the arcing of the windshield heat system at the upper, aft (J1) and upper, forward (J4) terminal locations on the first officer's windshield, which caused the inner pane of glass to fracture.
Accident investigation:
 |
|
Sources:
NTSB ENG08IA011
Location
Images:
Photo: NTSB
Photo: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Jul-2014 13:54 | harro | Added |
| 04-Jul-2014 13:54 | Anon. | Updated [Nature, Photo, ] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 02-Jan-2020 18:39 | ethan2226 | Updated [Nature] |
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