Service difficulty report · Flap Track · Boeing 7474KZF

Difficulty date
August 6, 2019
Submitted
August 6, 2019
Operation
Air carrier
Aircraft
N508KZ
Make and model
Boeing 7474KZF
Aircraft serial
36135
Aircraft time
35,099 hours, 7,180 cycles
Part
Flap Track
Part number
65B1706120
Part serial
CK1159
Condition
Corroded
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

EVIDENCE OF LIGHT SURFACE RUST ON ALL EIGHT FLAP TRACKS. REMOVE #1 - 8 FLAP TRACK. ACCOMPLISHED #4 AND #5 FLAP TRACK REPAIR IAW EI NO. T2019A57M-3224 REV.1 AND T2019A57M-3225 REV. 1. REFERENCE J/C ATTACHING SHEET NO. 0193461 TO INSTALL # 1, 2, 7, 8 FLAP TRACK WITH NEW. REFERENCE J/C ATTACHING SHEET NO. 0193463 STEP 1 TO INSTALL #3, 6 FLAP TRACK WITH NEW. REFERENCE J/C ATTACHING SHEET NO. 0193463, STEP 2-3, REINSTALL #4, 5 FLAP TRACK. CONDITION CHECK SATISFACTORY IAW AMM 27-51-27-004-001 REV. 95, AMM 27-51-27-404-011 REV. 96, EI NO. T2019A57M-3224 AND T2019A57M-3225.

More about the Boeing 747-4KZF