Service difficulty report · Aoa · Boeing 7378

Difficulty date
August 31, 2024
Submitted
September 3, 2024
Operation
Air carrier
Aircraft
N27276
Make and model
Boeing 7378
Aircraft serial
64611
Aircraft time
5,996 hours, 2,099 cycles
Part
Aoa
Part number
0861FL1
Part serial
26558
Condition
Faulty
Location
Zone 200
Part time
5,974 hours, 2,090 cycles
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

IAS DISAGREE AT 100KTS F/O 100KTS.CA 70 KTS RTO.RETURNING TO GAT E ACCOMPLISHED PITOT STATIC SYSTEM FLUSHING REF AMM34-11-00-170-802. FOUND TO DEBRIS DURING FLUSHING PROCESS. FOUND MAINT MESSAGE 31-03120. REPLACED #2 ADM NO HELP. LATER FOUND MAINT MESSAGE 31-03120 SWAPPED #1 & #2 ADIRS. FAULT DID ADD EMP:344425 NOT FOLLOW. RETURNED ADIRS TO ORIGINAL POSITIOMS. FOUND NO DEBRIS DURING FLUSH PROCESS. REF FIM 31-65 TASK B70 & FIM 31-65 TASK B74. UPDATED LABOR HOURS REMOVED AND REPLACED RH AOA SENSOR IAW B737 AMM 34-21-05. OPS CHECK GOOD. REMOVED AND REINSTALLED ORIGINAL RH ADM IAW B737 AMM 34-21-04. OPS CHECK GOOD.PARTS USED: 29-3412-9-0001,QTY :1 ADD EMP:U348571 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1460359 SN OFF 6558 SENSOR, ANGLE O OFF 29-3412-9-0001 6558 ON 29-3412-9-0001 9256 VERIFIED ALL PITOT AND STATIC PORTS COVERS REMOVED, AND QDS RECONNECTED. OPS CHECK NORMAL. UPDATE ROTABLE PART CHANGED ROTABLE PARTS CHANGE WAS INDICATED - TT # 1325600 SN OFF 3217 MODULE, AIR DAT OFF 42-3413-9-0001 3217 ON 42-3413-9-0001 7799

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