Service difficulty report · Seal · Boeing 73771B

Difficulty date
March 27, 2025
Submitted
March 31, 2025
Operation
Air carrier
Aircraft
N7852A
Make and model
Boeing 73771B
Aircraft serial
29371
Aircraft time
53,012 hours, 33,262 cycles
Part
Seal
Condition
Cracked
Location
Zone 300
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.

What was found

R/H HORIZONTAL STABILIZER FWD UPPER SLIDING SEAL CRACKED.<[01] 01 - REMOVED AND REPLACED PER [AMM 53-31-31-400-802-NG (STABILIZER-TO-BODY UPPER FRONT SPAR SLIDING SEAL INSTALLATION - PERMANENT)]R/H HORIZONTAL STABILIZER FWD UPPER SLIDING SEAL;[02] CHANGED RII FROM NO TO YES.;[03] TASK IS NOT RII. CHANGED RII FROM YES TO NO

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