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Gulfstream 4 flight crew has altitude deviation during departure from vny with dual duty caused by an inexperienced first officer.
| Attributes | |
| ACN | 585130 |
| Time | |
| Date | 200306 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : vny.airport |
| State Reference | CA |
| Altitude | msl bound lower : 1700 msl bound upper : 2100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon tower : vny.tower |
| Operator | common carrier : air taxi |
| Make Model Name | Gulfstream IV |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : canoga |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 70 flight time total : 7000 flight time type : 1200 |
| ASRS Report | 585130 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : clearance non adherence : published procedure |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to assigned altitude |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flying with a fill-in, part time copilot, who was not greatly experienced in the aircraft. The canoga 6 departure off runway 16 at van nuys calls for climb limit of 1750 ft MSL till reaching the 2.2 DME. The FMS was programmed for this and after takeoff, we usually hit LNAV and VNAV. As we took the runway, I realized that my copilot was beginning to struggle with simple tasks as the stress level rose -- exemplified by his stumbling with the radio call to take the runway. We were cleared for takeoff and I quickly decided to review all that he had done. My workload increased dramatically at a very critical point. Considering that, shortly after takeoff, I do not know if I hit or he hit the flch (flight level change button) rather than the VNAV button, which led to busting through the 1750 ft and I did not get it stopped till 2100 ft leaving burbank arrs, runway 8, unprotected. No conflict with other aircraft arose. Things I learned: do not take the runway until absolutely sure all is well and monitor, monitor, monitor.
Original NASA ASRS Text
Title: GULFSTREAM 4 FLT CREW HAS ALTDEV DURING DEP FROM VNY WITH DUAL DUTY CAUSED BY AN INEXPERIENCED FO.
Narrative: FLYING WITH A FILL-IN, PART TIME COPLT, WHO WAS NOT GREATLY EXPERIENCED IN THE ACFT. THE CANOGA 6 DEP OFF RWY 16 AT VAN NUYS CALLS FOR CLB LIMIT OF 1750 FT MSL TILL REACHING THE 2.2 DME. THE FMS WAS PROGRAMMED FOR THIS AND AFTER TKOF, WE USUALLY HIT LNAV AND VNAV. AS WE TOOK THE RWY, I REALIZED THAT MY COPLT WAS BEGINNING TO STRUGGLE WITH SIMPLE TASKS AS THE STRESS LEVEL ROSE -- EXEMPLIFIED BY HIS STUMBLING WITH THE RADIO CALL TO TAKE THE RWY. WE WERE CLRED FOR TKOF AND I QUICKLY DECIDED TO REVIEW ALL THAT HE HAD DONE. MY WORKLOAD INCREASED DRAMATICALLY AT A VERY CRITICAL POINT. CONSIDERING THAT, SHORTLY AFTER TKOF, I DO NOT KNOW IF I HIT OR HE HIT THE FLCH (FLT LEVEL CHANGE BUTTON) RATHER THAN THE VNAV BUTTON, WHICH LED TO BUSTING THROUGH THE 1750 FT AND I DID NOT GET IT STOPPED TILL 2100 FT LEAVING BURBANK ARRS, RWY 8, UNPROTECTED. NO CONFLICT WITH OTHER ACFT AROSE. THINGS I LEARNED: DO NOT TAKE THE RWY UNTIL ABSOLUTELY SURE ALL IS WELL AND MONITOR, MONITOR, MONITOR.
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.