- Difficulty date
- October 21, 2009
- Submitted
- October 26, 2009
- Operation
- Air carrier
- Make and model
- Boeing 727233
- Aircraft serial
- 21624
- Aircraft time
- 51,017 hours, 31,559 cycles
- Part
- Torque Box
- Part number
- 6517510120
- Condition
- Cracked
- Location
- Aft Airstair
- 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.
What was found
AFT AIR STAIRS, RT LWR TORQUE BOX, LWR LIGHTNING HOLE IS CRACKED AT TOP AT BS 1213. REMOVED DAMAGE 1/4" X 3/4" IN AFT AIRSTAIRS RT LOWER TORQUE BOX LOWER LIGHTNING HOLE AT BS 1213 IAW B727 SRM REV 101 51-10-1. FABRICATED DOULBER FROM 7075T6 .032" X 4" X 2 1/2" PO 9008186 IAW B727 SRM 51-40-2 FIG 1 AND 53-10-2 FIG 6. INSTALLED REPAIR DOUBLER IAW B727 SRM 51-30-2.