What was found
E/E BAY COOLING EXHAUST DUCT AFT FLANGE IS CRACKED. THE DUCT WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM. REMOVED AND INSTALLED NEW COOLING EXHAUST DUCT IAW AMM 21-27-10.
- Difficulty date
- December 31, 2025
- Submitted
- January 23, 2026
- Operation
- Air carrier
- Aircraft
- N7873A
- Make and model
- Boeing 7377Q8
- Aircraft serial
- 29350
- Aircraft time
- 60,447 hours, 33,984 cycles
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- Duct
- Condition
- Cracked
- Location
- Zone 100
- 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.