Service difficulty report · Bolt · Boeing 7379

Difficulty date
February 24, 2023
Submitted
February 27, 2023
Operation
Air carrier
Aircraft
N27511
Make and model
Boeing 7379
Aircraft serial
64493
Aircraft time
7,633 hours, 2,501 cycles
System (JASC)
5200 · Doors
Part
Bolt
Part number
BACB30NM4K13
Part serial
NA
Condition
None
Location
Upper Gate
Stage of operation
TX
How discovered
O
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

DOOR 2L WILL NOT OPEN UPPER GATE IS NOT MOVING INBOARD WHEN HANDLE IS TURNED, NOT ALLOWING THE DOOR TO OPEN. PN BACB30NMK16. ORDERED NEW HDWE. UPON REMOVAL OF DOOR LINER FOUND AFT ENTRY DOOR UPR GATE ROD DISCONNECTED FROM UPR DOOR LATCH TORQUE TUBE. FOUND ATTACH HDWE RESTING ON STRUCTURE BELOW (NUT, WASHER AND BOLT). BOLT FOUND IS A -12 GRIP LENGTH. REF IPC52-13-00-12A ITEM 335, BOLT SHOULD BE REPLACED BOLT, WASHER, AND NUT REFERENCE CMM 52-16-15 FIGURE 2 ITEMS 130, 135, 140 ADD EMP:U094480,U394251 VERIFIED BOLT INSTALLATION AND SECURITY AND DOOR OPERATION PER RII. CKS OK. LOCK NUT WAS NOT TORQUED DOWN PROPERLY, CAUSING THE BOLT TO BACK OUT.

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