 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier medium large transport PIC failed to follow published procedure for starting APU when first start attempt fails.
| Attributes | |
| ACN | 146670 |
| Time | |
| Date | 199005 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ont |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | ground : parked ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 140 flight time total : 14000 |
| ASRS Report | 146670 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 160 flight time total : 8000 flight time type : 270 |
| ASRS Report | 146652 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : unable none taken : anomaly accepted none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
First flight of the day, ontario, ca. Copilot attempted to start APU. APU would not start, no egt, no overspd, no low oil pressure, or high oil temperature lights were observed. I assumed, because we had no indications that the circuit breaker in 'lower 41' was popped. In fact it was popped. A second attempt was now made, but I considered this to be the first attempt because of the popped circuit breaker. I was outside doing the 'walk around' and observed smoke coming from the APU tailpipe. The start was aborted, again no egt was observed. As a precaution I had ground personnel call the fire department and maintenance. Following the aborted start, the overspd light was illuminated and fuel was noted on the ramp. Although we considered 'the second attempt' to be the first attempted start (because of the popped circuit breaker) we did observe the 4 min rule. (This report is filed at the request of denver flight operations to supplement the irregularity report already filed).
Original NASA ASRS Text
Title: ACR MLG PIC FAILED TO FOLLOW PUBLISHED PROC FOR STARTING APU WHEN FIRST START ATTEMPT FAILS.
Narrative: FIRST FLT OF THE DAY, ONTARIO, CA. COPLT ATTEMPTED TO START APU. APU WOULD NOT START, NO EGT, NO OVERSPD, NO LOW OIL PRESSURE, OR HIGH OIL TEMP LIGHTS WERE OBSERVED. I ASSUMED, BECAUSE WE HAD NO INDICATIONS THAT THE CB IN 'LOWER 41' WAS POPPED. IN FACT IT WAS POPPED. A SECOND ATTEMPT WAS NOW MADE, BUT I CONSIDERED THIS TO BE THE FIRST ATTEMPT BECAUSE OF THE POPPED CB. I WAS OUTSIDE DOING THE 'WALK AROUND' AND OBSERVED SMOKE COMING FROM THE APU TAILPIPE. THE START WAS ABORTED, AGAIN NO EGT WAS OBSERVED. AS A PRECAUTION I HAD GND PERSONNEL CALL THE FIRE DEPT AND MAINT. FOLLOWING THE ABORTED START, THE OVERSPD LIGHT WAS ILLUMINATED AND FUEL WAS NOTED ON THE RAMP. ALTHOUGH WE CONSIDERED 'THE SECOND ATTEMPT' TO BE THE FIRST ATTEMPTED START (BECAUSE OF THE POPPED CB) WE DID OBSERVE THE 4 MIN RULE. (THIS RPT IS FILED AT THE REQUEST OF DENVER FLT OPS TO SUPPLEMENT THE IRREGULARITY RPT ALREADY FILED).
Data retrieved from NASA's ASRS site as of July 2007 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.