SDR SWAA2023050119326

Service difficulty report · Channel · Boeing 73779P

Difficulty date: March 21, 2023
Submitted: May 1, 2023
Operation: Air carrier
Aircraft: N7858A
Make and model: Boeing 73779P
Aircraft serial: 29361
Aircraft time: 53,310 hours, 34,766 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Channel
Condition: Corroded
Location: Zn 100 Fus Lower
Stage of operation: IN
How discovered: 9
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

CORROSION SPOTS ON AFT CARGO COMPARTMENT ZEE CHANNEL B.S.727B - 727D RBL. 22' W.L. 156. (51-002) CORROSION SPOTS ON AFT CARGO COMPARTMENT EE CHANNEL B.S.727B - 727D RBL. 21' W.L. 156.<[01] REF TASK CARD: TTG8Q00JZHM2 FOR AFT CARGO COMPARTMENT ZEE CHANNEL AT LBL. 22' REPLACEMENT;[02] CORRECTION TO STEP 1.<BR>REF TASK CARD: TTG8Q00JZGZA FOR AFT CARGO COMPARTMENT ZEE CHANNEL AT RBL. 22' REPLACEMENT;[03] VERIFIED STEP 2.

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