Loss of pressurization Incident Boeing 727-25 N8148N, Monday 26 December 1988
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Date:Monday 26 December 1988
Time:08:45
Type:Silhouette image of generic B721 model; specific model in this crash may look slightly different    
Boeing 727-25
Owner/operator:Eastern Air Lines
Registration: N8148N
MSN: 18972/242
Year of manufacture:1966
Engine model:P&W JT8D-7B
Fatalities:Fatalities: 0 / Occupants: 110
Other fatalities:0
Aircraft damage: Minor
Category:Incident
Location:Morgantown, WV -   United States of America
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Rochester-Monroe County Airport, NY (ROC)
Destination airport:Atlanta-William B. Hartsfield International Airport, GA (ATL)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
While cruising at FL310, the fuselage skin 'flapped' open between body stations 1090 and 1110 and peeled downward from stringer #4 left to stringer #5 left. A hole in the fuselage of 36cm caused a cabin decompression. The aircraft descended to FL100 and a safe emergency landing at Charleston was carried out. Investigation learne that a scratch or scribe mark was co-located with the longitudinal crack along stringer #4. The area of damage was located on the aft upper side, forward of the inlet for the #2 engine. the crack had initiated at multiple origins along the score mark and had grown by fatigue through the thickness of the material. A striation count found that between 3360 and 5040 cycles of fatigue progression were present. The scratch/score was made by use of marking tools during a repair process.
PROBABLE CAUSE: "maintenance,major repair..improper..company maintenance personnel"

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: DCA89IA016
Status: Investigation completed
Duration:
Download report: Final report

Sources:

NTSB

Revision history:

Date/timeContributorUpdates
26-Jul-2012 07:20 harro Added
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency, ]

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