SDR ASAA2025062259460

Service difficulty report · Transition Panel · Boeing 737890

Difficulty date: June 22, 2025
Submitted: July 17, 2025
Operation: Air carrier
Aircraft: N524AS
Make and model: Boeing 737890
Aircraft serial: 35195
Aircraft time: 51,944 hours, 18,657 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Transition Panel
Part number: 146A7502
Condition: Corroded
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.

What was found

AFT PIT, RH TRANSITION HAS CORROSION BETWEEN STA 767 AND STA 727B. FOUND CRACKS IN TRANSITION AT STA 727H, 727F, AND 727E. GROUNDED - YES. REMOVED AND REPLACED AFT PIT, RH TRANSITION BETWEEN STA 767 TO 727 IAW B737-800 SRM 53-00-53-2R-5W: 1" O: .040" R: 0" L" 9" D: .040".