Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
General Release Refused / Aircraft Not Accepted
Weather; Aircraft; Procedure
The inbound Captain told us that the high stage bleed APU and HUD were inoperative. we called Dispatch and discussed the operational limitations. This was our aircraft for the  entire day. The aircraft load was light and icing conditions were expected on our arrival at [destination]. MEL-PROCEDURES stated: 'A. Maintain a minimum of 60% N1 on the affected engine during flight in icing conditions. NOTE: Landing  weights below 145;000 lbs. may require flaps 40 to maintain minimum required N1 (60%) on approach. Landing weights below 118;000 lbs. may not be able to maintain minimum required N1 (60%) on approach.'  The captain and I both agreed that with the conditions that awaited us at [destination] and the concern for the safety of flight under all  flight and weather related conditions; it was best to not take the aircraft.... Dispatch concurred with our decision.
Do not Dispatch aircraft to these airports; under these conditions with these maintenance issues.... We owe it to the safety of our crews and our passengers.
B737-800 flight crew refused to accept an aircraft for a flight into known icing conditions with engine bleed air; APU and HUD inoperative.