Service difficulty report · Fitting · Boeing 73779P

Difficulty date
June 7, 2023
Submitted
July 11, 2023
Operation
Air carrier
Aircraft
N7827A
Make and model
Boeing 73779P
Aircraft serial
28255
Aircraft time
57,742 hours, 36,958 cycles
Part
Fitting
Part number
UNKNOWN
Condition
Corroded
Location
Zn 300 Stabilize
Stage of operation
IN
How discovered
9
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

CORROSION TRAILING EDGE FITTING LOC BTW FIN STA 132.2 AT FIN STA 150.6 AT VERTICAL STABILIZER 2023-365589<[01] REPLACED HOUSING ASSY -BEARING OF STANDBY RUDDER POWER CONTROL UNIT IAW B737-700 SRM 51-40-02-0G-0 AND AMM 20-50-11-910-801.SEE INDIVIDUAL SIGN OFF BELOW.;[02] CORRECTED STEP 1<BR>REPLACED HOUSING ASSY -BEARING OF STANDBY RUDDER POWER CONTROL UNIT IAW B737-700 SRM 51-40-02-0G-0 AND AMM 20-50-11-910-801;AMM 27-21-24-400-801.SEE INDIVIDUAL SIGN OFF BELOW.;[03] REPLACED HOUSING ASSY -BEARING OF STANDBY RUDDER POWER CONTROL UNIT IAW B737-700 SRM 51-40-02-0G-0 AND AMM 20-50-11-910-801;AMM 27-21-24-400-801.SEE INDIVIDUAL SIGN OFF BELOW.<BR>RII

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