What was found
LEFT HORIZONTAL UPPER FRONT SPAR SLIDING SEAL IS CRACKED. REMOVED AND REPLACED LH HORIZONTAL UPPER FRONT SPAR SLIDING SEAL IN ACCORDANCE WITH AMM 53-31-31. OPS CHECK GOOD.
- Difficulty date
- January 12, 2023
- Submitted
- January 13, 2023
- Operation
- Air carrier
- Aircraft
- N477WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33988
- Aircraft time
- 62,336 hours, 37,081 cycles
- System (JASC)
- 5510 · Horizontal Stabilizer Structure
- Part
- Seal
- Condition
- Cracked
- Location
- Horizontals Tab
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.