SDR ASAA2021012534007

Service difficulty report · Panel · Boeing 737990ER

Difficulty date: January 25, 2021
Submitted: February 6, 2021
Operation: Air carrier
Aircraft: N483AS
Make and model: Boeing 737990ER
Aircraft serial: 36350
Aircraft time: 20,159 hours, 6,469 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Panel
Part number: 143A7501102
Part serial: NSN
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

FORWARD CARGO TRANSITION PANEL AT RBL 25 CORRODED BETWEEN STA 500B=10 TO STA 500L. GROUNDED - YES. REMOVED CORROSION FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2 REPAIRED TRANSITION PANEL IAW B737-900ER SRM 53-00-53-2R-5W=1.2 O=.040 R=.020 L=2.2 D=.020.