37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 1318563 |
Time | |
Date | 201512 |
Local Time Of Day | 0601-1200 |
Place | |
Locale Reference | SCT.TRACON |
State Reference | CA |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
Operating Under FAR Part | Part 121 |
Flight Phase | Climb |
Route In Use | SID POGGI 5 |
Flight Plan | IFR |
Aircraft 2 | |
Make Model Name | Small Transport |
Operating Under FAR Part | Part 91 |
Flight Phase | Climb |
Flight Plan | None |
Person 1 | |
Function | Pilot Flying First Officer |
Qualification | Flight Crew Air Transport Pilot (ATP) |
Person 2 | |
Function | Pilot Not Flying Check Pilot |
Qualification | Flight Crew Air Transport Pilot (ATP) |
Events | |
Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Altitude Excursion From Assigned Altitude |
Narrative:
Flight from san. Climbing on the poggi 5 RNAV departure. Out of 12;000 feet on our way to assigned altitude of 14;000 feet the departure controller queried whether we could maintain current rate of climb all the way to 14;000 which we answered yes. Current rate was 2200 FPM and I selected vs to maintain the climb as requested. A traffic TA was activated for an aircraft preparing to drop skydivers at our 11 o'clock and approximately 5 miles. As we leveled at 14;000 feet I decided this traffic might be a factor and disengaged the autopilot and began a climb just as the TCAS entered the RA mode of 'monitor vertical speed'. The captain notified ATC we were climbing for traffic; and we were issued a higher altitude. The captain had the other aircraft in sight and said it was no factor. Once clear of the conflict; the flight continued normally with no further comment from ATC.it all happened pretty fast; but this seems to be a poor setup for the departure. If the skydiving operation is known to be near this departure corridor; a minimum altitude on the SID which is above the known drop zone at a point before reaching the drop zone would ensure this doesn't happen again. Also; I believe the controller probably meant to issue us an altitude assignment of 15;000 but had only given us 14;000. 15;000 would have avoided this issue all together and is actually published as the top altitude on the SID.
Original NASA ASRS Text
Title: Air carrier flight crew experienced an airborne conflict and TCAS RA after level-off following the POGGI 5 RNAV departure procedure. Conflicting aircraft was preparing to drop skydivers from the same altitude. ATC issued clearance for a higher altitude.
Narrative: Flight from SAN. Climbing on the POGGI 5 RNAV departure. Out of 12;000 feet on our way to assigned altitude of 14;000 feet the departure controller queried whether we could maintain current rate of climb all the way to 14;000 which we answered yes. Current rate was 2200 FPM and I selected VS to maintain the climb as requested. A traffic TA was activated for an aircraft preparing to drop skydivers at our 11 o'clock and approximately 5 miles. As we leveled at 14;000 feet I decided this traffic might be a factor and disengaged the autopilot and began a climb just as the TCAS entered the RA mode of 'monitor vertical speed'. The captain notified ATC we were climbing for traffic; and we were issued a higher altitude. The captain had the other aircraft in sight and said it was no factor. Once clear of the conflict; the flight continued normally with no further comment from ATC.It all happened pretty fast; but this seems to be a poor setup for the departure. If the skydiving operation is known to be near this departure corridor; a minimum altitude on the SID which is above the known drop zone at a point before reaching the drop zone would ensure this doesn't happen again. Also; I believe the controller probably meant to issue us an altitude assignment of 15;000 but had only given us 14;000. 15;000 would have avoided this issue all together and is actually published as the top altitude on the SID.
Data retrieved from NASA's ASRS site 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.