SDR S01257039

Service difficulty report · Jackscrew · Boeing 747209B

Difficulty date: October 7, 2001
Submitted: December 12, 2001
Operation: Air carrier
Make and model: Boeing 747209B
Aircraft serial: 21454
Engine: Pwa JT9D7A
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Jackscrew
Condition: Damaged
Location: Te Flaps
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

B-18751 GRD CHK FOUND NR 1 FLAPTRACK JACKSCREW FITTING BROKEN.C/A:1.ISSUED REVISION OF EO 740-57-50-0004 TO PERFORM THE REPLACEMENT/OVERHAUL IN LIEU OF INSPECTION. 2.REPLACED WITH NEW FITTING NR 1 THROUGH NR 8 PER 742-57-639359-001R1. 3.PROVIDE BROKEN FITTING TO BOEING FOR FURTHER ANALYSIS REQUESTED. 4.OPEN THIS CASE FOR FURTHER ACTION PER REVISION SB THAT WILL BE PROVIDED ON 12/14/2001.