SDR FDEA200907282878

Service difficulty report · Keelbeam · Boeing 727225

Difficulty date: July 28, 2009
Submitted: August 13, 2009
Operation: Air carrier
Aircraft: N463FE
Make and model: Boeing 727225
Aircraft serial: 22551
Aircraft time: 40,486 hours, 28,316 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Keelbeam
Condition: Cracked
Location: Bs 870
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

RT W/W KEEL BEAM CHORD ON RT SIDE IS CRACKED AT BS 870 RBL 6. REMOVED AND DISCARDED GUSSET PLATE AND REMOVED FASTENERS ON CHORD IAW EA 7-5310-126839 HFEC SHOWS HOLES ARE FREE OF CRACKS IAW NDTM 51-00- 00 FIG 23 PART 6 TRIMMED OUT DAMAGED CHORD AREA DIM 2 1/2" X 1" FABRICATED REPAIR DOUBLER, LOCATED AND DRILLED DOUBLER IAW EA 7-5310-126839 CADMIUM PLATED DOUBLER IAW 20-40-2 AND 20-24-05 ALODINED AND PRIMED CHORD AREA AND DOUBLER IAW B72751-10-2 INSTALLED DOUBLER REPAIR IAW EA 7-5310-126839