Service difficulty report · Circuit Card · Boeing 76731K

Difficulty date
April 17, 2019
Submitted
April 23, 2019
Operation
Air carrier
Aircraft
N1489A
Make and model
Boeing 76731K
Aircraft serial
27206
Aircraft time
104,684 hours, 20,364 cycles
Part
Circuit Card
Part number
285N0028136
Part serial
D19501
Condition
Failed
Location
Smoke Detection
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

MAIN DECK CARGO COMPARTMENT SMOKE DETECTION SYSTEM LOOP #2 INOP.(<P>TRANSFERRED TO MDDR 110407.<BR /></P><P>LP 1032737 - M1: PERFORMED OPS CHECK OF MAIN DECK CARGO FIRE DETECTION PER DDG 26-16-02-10 AND CHECKED FAILED. T/S PER FIM 26-14 TREE 809 AND FOUND PRINTED CIRCUIT FIRE CARD M2026 TO BE BAD. REPLACED AND OPS CHECK IS GOOD. REINSPECT IS GOOD. DMI 110407 REMAINS OPEN.</P><P>LP 1032739 - M5: T/S DISCREPANCY AND RAN FIM 26-14 TREE 809. FOUND NO FAULTS, DMI 110407 REMAINS OPEN PER MCC.</P><P>LP 1032740 - P1: PERFORMED T/S OF MAIN CARGO LOOP 2 SYSTEM IAW AMM 26-14-00 AND FIM 26-14-00 FT 809 OPS TEST NORMAL AT THIS TIME. DMI 110407 REMAINS OPEN AT THIS TIME. FOR FURTHER MONITORING PEP MCC.</P><P>LP 1056815 - M7: PERFORMED FIM 26-14 FT 809, NO FAULTS NOTED, PERFORMED FIN 26-10 FT 803, AFOLTS CARD BITE, NO FAULTS NOTED, PUT MAIN CARGO AFOLTS CARD ON ORDER WITH MCC P/N 285N0028-136 EQUIP # M2026. DMI 110407 REMAINS OPEN.</P><P>LP 1056817 - M1: <SPAN>REMOVED AND REPLACED MAIN CARGO FIRE/OVHT PRINTED CIRCUIT CARD M2026 IAW AMM 26-10-01. OPS CHECK GOOD,

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