SDR ASAA2022030637776

Service difficulty report · Skin · Boeing 737990ER

Difficulty date: March 6, 2022
Submitted: March 30, 2022
Operation: Air carrier
Aircraft: N251AK
Make and model: Boeing 737990ER
Aircraft serial: 62470
Aircraft time: 20,652 hours, 6,747 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Part number: 143A321214
Part serial: NA
Condition: None
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

SAD DEFERRAL 12182341 REQUIRES RE-EVALUATION FOR PROER DEFERRAL CODE DUE ITS LOCATION IN THE RVSM EXTRA CRITICAL AREA. ( DEFECT LOCATED AT BS384, 4.5" ABOVE S17L) BEING REPORTED AS 1.5" LONG, 1.25W, AND .020" DEEP BS 384, STR16L- STR 17L. GROUNDED - YES. ON DEFERRAL.