What was found
UPPER DECK FRAME BS 660 HAS 15 MISDRILLED HOLES. REAMED 13 TO ALLOWABLE LIMITS PER B747 SRM 53-10-01 FIG 1. REMOVED, FABBED AND INSTALLED REPLACEMENT CHORD LWR STA 660 RBL 80 PER B747 SRM 51-40-01 FIG 1.
- Difficulty date
- March 3, 2009
- Submitted
- March 25, 2009
- Operation
- Air carrier
- Aircraft
- N471
- Make and model
- Boeing 747273C
- Aircraft serial
- D3303
- Aircraft time
- 100,287 hours, 23,726 cycles
- System (JASC)
- 5311 · Fuselage Main, Frame
- Part
- Frame
- Condition
- Damaged
- Location
- Bs 660
- 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.