Service difficulty report · Bulkhead · Boeing 7572B7

Difficulty date
January 10, 2008
Submitted
January 11, 2008
Operation
Air carrier
Aircraft
N903FD
Make and model
Boeing 7572B7
Aircraft serial
27124
Aircraft time
47,097 hours, 19,245 cycles
Part
Bulkhead
Part number
311N50433
Condition
Damaged
Location
Nr 1pylon
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

WHILE ACCOMPLISHING FX EO F-5450-7-5005 PT, THE NR 1 PYLON MID BULKHEAD FWD RT BOLT HOLE WAS REAMED PER STEP 3.C AND FIG. 9. TOLERANCE FOR MAX DIA SHOULD BE 0.3901- 0.3911". FINAL DIA AFTER REAMING IS 0.3925". HFEC INSPECTED MID BULKHEAD FWD RT BOLT HOLE PER NDT MANUAL PART 6 SECTION 51-00-00. REAMED HOLE AND INSTALLED BACB30YK12K8Y LOCK FASTENER AND VISUALLY INSPECTED FOR PROPER INSTALLATION PER EA F-5450-110814 DATED 12/05/07.

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