Service difficulty report · Support · Boeing 73773V

Difficulty date
July 20, 2023
Submitted
August 15, 2023
Operation
Air carrier
Aircraft
N7839A
Make and model
Boeing 73773V
Aircraft serial
30243
Aircraft time
63,332 hours, 39,016 cycles
Part
Support
Part number
UNKNOWN
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 ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS727A - BS767 RBL21 WL157.<[01] VERIFIED SRM 53-60-53-0I-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE.<BR><BR>STEPS 1;2 AND 3 FOUND TO BE OUT OF LIMITS;[02] VERIFIED STEPS 1;2;3; IN PARTIAL.;[03] VERIFY STEPS 4 AND 5 COMPLETED;[04] VERFY STEP 6 COMPLETED;[05] VERIFY STEP 7 COMPLETED;[06] VERIFY STEP 8 COMPLETED;[07] ALL ITEMS MAINTENANCE COMPLETED;[08] UPDATED INSTALLED PART INFO;[09] VERIFIED ALL STEPS AND MEASUREMENT TABLE COMPLETE. CARD COMPLETE

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