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| Date: | Saturday 2 November 1991 |
| Time: | 11:17 LT |
| Type: |  Boeing 727-131 |
| Owner/operator: | Private Jet Expeditions |
| Registration: | N839TW |
| MSN: | 18904/152 |
| Engine model: | P&W JT8D |
| Fatalities: | Fatalities: 0 / Occupants: 118 |
| Other fatalities: | 0 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Gulf Of Mexico, -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Newark, NJ (KEWR) |
| Cancun, OF (MMUN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
GROUND PERSONNEL SERVICED FORWARD LAVATORY JUST BEFORE FLIGHT. FLIGHT ATTENDANT STATED FLUID WAS VISIBLE IN UPPER TOILET AREA OF FORWARD LAVATORY AFTER SERVICING INDICATING IT HAD BEEN OVERFILLED. ENROUTE NUMBER 3 ENGINE FAILED AND WAS SHUTDOWN. FLIGHT DIVERTED TO MIAMI. ON ARRIVAL A BLUE STREAK WAS FOUND ON THE RIGHT SIDE OF THE AIRCRAFT BEGINNING AT THE FORWARD LAVATORY SERVICE DOOR AND ENDING AT THE INLET TO NUMBER 3 ENGINE. THE FORWARD LAVATORY SERVICE DOOR WAS FOUND CLOSED AND THE FILL/RINSE LINE CAP WAS MISSING WHEN THE DOOR WAS OPENED. THE FILL/RINSE LINE CHECK VALVE WAS FOUND STUCK OPEN. WHEN A CAP WAS INSTALLED ON THE LINE NO LEAKAGE OCCURRED. THE LAVATORY DRAIN LINE DID NOT LEAK. NUMBER 3 ENGINE HAD SUSTAINED FAN DAMAGE DUE TO INGESTION OF SOFT MATTER.
Probable Cause: THE OVERFILLING OF THE FORWARD LAVATORY DURING SERVICING AND THE FAILURE TO REPLACE THE FILL/RINSE LINE CAP AFTER SERVICING BY THE GROUND SERVICE PERSONNEL WHICH RESULTED IN THE LAVATORY VENTING FLUID THROUGH THE FILL/RINSE LINE DURING FLIGHT AND THE SUBSEQUENT ICE FORMATION AND INGESTION OF ICE INTO NUMBER THREE ENGINE.
Accident investigation:
 |
|
Sources:
NTSB MIA92IA020
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Mar-2024 13:29 | ASN Update Bot | Added |
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