Service difficulty report · Pcb · Beech 400A

Difficulty date
March 17, 2015
Submitted
March 18, 2015
Operation
General aviation
Aircraft
N1116R
Make and model
Beech 400A
Aircraft serial
RK116
Aircraft time
2,812 hours, 3,159 cycles
Engine
Pwa JT15D5
Part
Pcb
Part number
1283640925
Condition
Deactivated
Location
Ignition
Part time
2,812 hours, 3,159 cycles
Stage of operation
NR
How discovered
9
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

IGNITER WOULD NOT FUNCTION, NO POWER TO UNIT. NO POWER TO UNIT IN IGNITER ON OR STANDBY POSITION OR DURING START. ENGINE LIP HEAT VALVE NOT POWERED WITH BATTERY ON. POWERS CLOSES VALVE BATTERY ON. OPENS ON ACTIVATION BY REMOVING POWER. DISCOVERED SOMEONE HAD ZIP TIED THE WIRE BUNDLE FOR THIS CONNECTOR TO THE WIRE BUNDLE OF THE ADJACENT CONNECTOR. TENSION FROM THE WIRE TIE EVENTUALLY OVERCAME THE MECHANICAL HOLD DOWN AND PULLED THE CONNECTOR FROM THE BOARD. WIRE TIE APPEARED OLD AS THOUGH MAYBE DONE AT THE FACTORY. RESULT WAS TOTAL LOSS OF IGNITER ON RT ENGINE AS WELL AS ENGINE LIP HEAT ON AT ALL TIMES WITH NO CONTROL FROM THE COCKPIT OF EITHER THE IGNITER BOX OR THE ENGINE HEAT AS IT DEFAULTS ON WITH LOSS OF POWER. PCB LOCATED IN PEDESTAL IN LOWER RACK FWD ON RT SIDE SECOND BOARD IN FROM RT.

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