An emb-145 APU shutdown prior to pushback and subseqently a pilot informed them the APU as on fire s...

Narrative:

As the captain and I were preparing for push back while at the gate during the boarding process; the APU failed. We smelled something burning. No EICAS message was presented. Almost immediately thereafter; a pilot from another crew told us our APU was on fire. The captain called for an evacuation of the aircraft. The flight attendant immediately got everyone off the airplane and directed them back into the terminal. The captain declared an emergency with ground frequency and called for fire trucks. We ran the APU fire QRH and pushed the APU fire extinguishing button as per the QRH. The fire trucks additionally used external extinguishing aids. The fire was extinguished. Also; the APU had an MEL for an inoperative generator; which could be considered a threat since it required abnormal operation.

Original NASA ASRS Text

Title: An EMB-145 APU shutdown prior to pushback and subseqently a pilot informed them the APU as on fire so the aircraft was evacuated; an emergency declared; the QRH completed and the Fire Crew extinguished the fire.

Narrative: As the Captain and I were preparing for push back while at the gate during the boarding process; the APU failed. We smelled something burning. No EICAS message was presented. Almost immediately thereafter; a pilot from another crew told us our APU was on fire. The Captain called for an evacuation of the aircraft. The Flight Attendant immediately got everyone off the airplane and directed them back into the terminal. The Captain declared an emergency with Ground frequency and called for fire trucks. We ran the APU fire QRH and pushed the APU fire extinguishing button as per the QRH. The fire trucks additionally used external extinguishing aids. The fire was extinguished. Also; the APU had an MEL for an inoperative generator; which could be considered a threat since it required abnormal operation.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1034636
Time
Date	201209
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	APU
Person 1
Function	First Officer
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

An emb-145 APU shutdown prior to pushback and subseqently a pilot informed them the APU as on fire so the aircraft was evacuated; an emergency declared; the QRH completed and the fire crew extinguished the fire.