- Difficulty date
- April 5, 2011
- Submitted
- May 6, 2011
- Operation
- Air carrier
- Make and model
- Doug DC873F
- Aircraft serial
- 46125
- Aircraft time
- 87,589 hours, 32,560 cycles
- Part
- Stiffener
- Condition
- Cracked
- Location
- Rudder
- 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
RUDDER L/E STIFFENER CRACKED 2" STA ZR 105.000. REMOVED CRACKED STIFFENER IAW SRM 51-1-21, SRM 51-3-0. FABRICATED STIFFENER IAW SRM 55-6-1 PG 4. HEAT TREATED STIFFENER FROM 2024"0" TO 2024T4 IAW SRM 51-1-1 PG 1-13-17. CLEANED, TREATED AND PRIMED AREA & STIFFENER IAW SRM 51-1-8B. INSTALLED NEW STIFFENER IAW SRM 51-1-21.