Service difficulty report · Switchpack · Boeing 7378H4

Difficulty date
April 10, 2022
Submitted
April 14, 2022
Operation
Air carrier
Aircraft
N8327A
Make and model
Boeing 7378H4
Aircraft serial
37009
Aircraft time
30,293 hours, 13,830 cycles
Part
Switchpack
Part number
254A115014
Part serial
832702
Condition
Faulty
Location
#2 Engine
Stage of operation
LD
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

#2 ENG THRUST REVERSER SLOW TO DEPLOY. #2 THRUST REVERSER LIGHT ILLUMINATED. 09APR EMAIL SENT REQUESTING FIELD TECH SUPPORT F/C AT TIME OF DEFERRAL LH SLEVE STOW SENSOR S831***SCHD 04/10 MCO***3-21 OPS CK GOOD 3-29 R/R #2 ENG LH T/R SYNC LOCK 4-9 R&R T/RSLEEVE STOW SENSOR S831 AWLAYS BEEN SAME FAULT CODE4-9 OPS CK GOOD******4/10: ATL HAS A FIELD TECH AVAILABLE TONIGHT DO NOT CARRY OVER MEL WITHOUT RUSS HILLMAN OR TEAM LEAD APPROVAL ***********PRIOR TO R/R HARNESS PLEASE RING OUT AND VERIFY RECENTLY INSTALLED SENSOR ASSY FAULTY - MOC / [01] COMPLIED WITH EAU BITE; FOUND FAULT CODE LEFT SLEEVE STOW SENSOR FAULT S831. OK TO CONTINUE PER MEL 78-1-01. SP# 1 SP# 1A SP#78. AIRCRAFT DOWNGRADED TO CAT I STATUS.;[02] REMOVED AND REPLACED RIGHT AUTOTHROTTLE SWITCH PACK ASSY. IAW AMM 76-11-07. OP?S CHECK GOOD. EV.# E011214.<BR>AIRCRAFT RECERTIFIED TO CAT III STATUS PER MT 734-00-03. <BR>VERIFICATION # 28484. E71883.

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