What was found
REPAIR HAS DEPARTED AIRCRAFT FROM NR 4 ENGINE ACOUSTIC LINER ON RT REVERSER SLEEVE BETWEEN 3 AND 4 O'CLOCK. DAMAGED AREA IS 5.0" LONG X 1.25" WIDE X 0.5" DEEP. INSTALLED NEW SLEEVE PER MM, OPS CHECKED GOOD.
- Difficulty date
- April 4, 2011
- Submitted
- April 27, 2011
- Operation
- Air carrier
- Aircraft
- N171UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24322
- Aircraft time
- 81,212 hours, 9,698 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 7830 · Engine Thrust Reverser
- Part
- Sleeve
- Condition
- Damaged
- Location
- Thrust Reverser
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.