- Difficulty date
- September 17, 2018
- Submitted
- September 17, 2018
- Operation
- Air carrier
- Make and model
- Doug DC915F
- Aircraft serial
- 47010
- Aircraft time
- 56,203 hours, 65,811 cycles
- Engine
- Pwa JT8D7B
- Engine time
- 55,614 hours, 63,442 cycles
- Part
- Bolt
- Part number
- NAS11039
- Condition
- Sheared
- Location
- Aft Airstairs
- Part time
- 56,203 hours, 65,811 cycles
- Component
- Air Stairs · Doug
- Component part number
- 3917209501
- Stage of operation
- TX
- 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
THE ATTACH BOLTS REFERENCE IPC 52-60-04-01 ITEM 105 P/N NAS1203-9 ITEM 110 P/N NAS1103-9 THAT SECURE RETAINER ASSEMBLY (VENTRAL STAIR DOOR BEARING) REFERENCE IPC 52-60-04-01 ITEM 26 P/N 3917209-501 TO ADJACENT STRUCTURE AND AFT STAIR ACTUATING MECHANISIMS SHEARED DURING AFT STAIR OPENING PROCEDURE WHICH CAUSED STRESS CRACKING AND FAILURE OF SURROUNDING SUPPORT STRUCTURES.