What was found
FLIGHT ATTENDANT REPORTS DOOR 4L SLIDE PRESSURE LOWER THAN 2000 PSI. SLIDE ASSY PRESSURE CHECKS NORMAL RANGE. SLIDE PROBLEM ROOT CAUSE: LEAKING O'RINGS HARDENED BY TIME IN POSITION & COLD.
- Difficulty date
- February 14, 2007
- Submitted
- February 21, 2007
- Operation
- Air carrier
- Aircraft
- N198UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28716
- Aircraft time
- 39,074 hours, 4,799 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2565 · Escape Slide
- Part
- O-Ring
- Condition
- Failed
- Location
- L4 Slide Bottle
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.