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A combination of factors prevent an air carrier medium large transport 4 jet from making his crossing restriction on SID departure.
| Attributes | |
| ACN | 151634 |
| Time | |
| Date | 199007 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : pye airport : sfo |
| State Reference | CA |
| Altitude | msl bound lower : 15700 msl bound upper : 16000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa tower : dpa |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other departure sid : sid enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 2880 flight time type : 280 |
| ASRS Report | 151634 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : undershoot altitude deviation : crossing restriction not met inflight encounter other non adherence : clearance non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
During climb out on offshore 1 departure, we did not make the 16000' at 68 DME. Factors contributing to the problem was an early turn out out of san francisco which caused a turn to the south earlier than planned. A request to climb rapidly to 5000' for traffic which slowed the aircraft. #4 engine was not putting out climb power and was written up on landing. Finally, the aircraft (4 jet medium large transport) has poor climb characteristics, especially due to reduced power in the summertime. Although I do not believe there was any conflict or aircraft nearby, and we were close to our required altitude, to ensure we do not have a problem in the future more information needs to be given to the controller with a request vector or allowance if we cannot make our assigned altitude. I believe that this altitude is a difficult one for a summer departure for some aircraft and would recommend crossing 'signal' a little further down. (In altitude).
Original NASA ASRS Text
Title: A COMBINATION OF FACTORS PREVENT AN ACR MLG 4 JET FROM MAKING HIS CROSSING RESTRICTION ON SID DEP.
Narrative: DURING CLBOUT ON OFFSHORE 1 DEP, WE DID NOT MAKE THE 16000' AT 68 DME. FACTORS CONTRIBUTING TO THE PROB WAS AN EARLY TURN OUT OUT OF SAN FRANCISCO WHICH CAUSED A TURN TO THE S EARLIER THAN PLANNED. A REQUEST TO CLB RAPIDLY TO 5000' FOR TFC WHICH SLOWED THE ACFT. #4 ENG WAS NOT PUTTING OUT CLB PWR AND WAS WRITTEN UP ON LNDG. FINALLY, THE ACFT (4 JET MLG) HAS POOR CLB CHARACTERISTICS, ESPECIALLY DUE TO REDUCED PWR IN THE SUMMERTIME. ALTHOUGH I DO NOT BELIEVE THERE WAS ANY CONFLICT OR ACFT NEARBY, AND WE WERE CLOSE TO OUR REQUIRED ALT, TO ENSURE WE DO NOT HAVE A PROB IN THE FUTURE MORE INFO NEEDS TO BE GIVEN TO THE CTLR WITH A REQUEST VECTOR OR ALLOWANCE IF WE CANNOT MAKE OUR ASSIGNED ALT. I BELIEVE THAT THIS ALT IS A DIFFICULT ONE FOR A SUMMER DEP FOR SOME ACFT AND WOULD RECOMMEND XING 'SIGNAL' A LITTLE FURTHER DOWN. (IN ALT).
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.