AFTER STARTING APU (CONT)

TM 1-1520-238-MTF 2-55 PROCEDURE TROUBLESHOOTING REFERENCE AFTER STARTING APU (CONT) e. NO. 1 PWR lever – LOCKOUT. Verify fuel flows from overboard drain. CAUTION To prevent FIRE BTL activation, verify FIRE BTL Select switches are centered. f. Pilots ENG 1 FIRE PULL handle – Pull. ENCU shuts down, cooling louvers close, fuel flow stops, and respective engine FUEL PSI caution/warning illuminates. g. Pilots ENG 1 FIRE PULL handle – In. Verify ENCU returns, cooling louvers open, fuel flow returns, and respective engine FUEL PSI caution/warning extinguishes. h. CPGs ENG 1 FIRE PULL handle – Pull. Verify same function as step f. i. CPGs ENG 1 FIRE PULL handle – In. Verify same function as step g. j. NO. 1 PWR lever – OFF. Verify fuel flow stops. k. Repeat steps e through j using NO. 2 PWR lever and ENG 2 FIRE PULL handles.