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B787 flight crew reported being assigned 270 kts below 10;000 ft by ATC. Initially they thought it was ok; then later realized their manual stated otherwise.
| Attributes | |
| ACN | 1515849 |
| Time | |
| Date | 201801 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | LAX.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B787 Dreamliner Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 13722 Flight Crew Type 1119 |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Experience | Flight Crew Total 7701 Flight Crew Type 775 |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural FAR Deviation - Procedural Published Material / Policy Deviation - Speed All Types |
Narrative:
I classified the error as procedural as we complied with an ATC instruction to climb at 270kts below 10;000 ft. I was the pm on this flight and the first officer was the pilot flying. Socal requested 270 kts below 10;000 ft; after takeoff from runway 24L. We were at a very heavy weight as we were flying lax to pvg; so clean maneuvering was above 250 kts. ATC specifically requested 270 kts; and then later 'best rate'. I replied that we could do 270 kts. He requested that once we were above 10;000 ft he wanted best rate climb speed; then we were given normal speed somewhere between 15;000 and 18;000 ft.my experience was with previous departures from lax; at max weight takeoff; or near max takeoff weight; our clean maneuvering speed was over 250 kts. After the flight blocked in at destination; during our post flight cockpit crew debrief; we discussed the fom policy that we were not allowed to climb above clean maneuvering speed when below 10;000 ft. I as the captain and the rest of the crew feel that the ATC controller led us into violating this regulation or policy.
Original NASA ASRS Text
Title: B787 flight crew reported being assigned 270 kts below 10;000 ft by ATC. Initially they thought it was ok; then later realized their manual stated otherwise.
Narrative: I classified the error as procedural as we complied with an ATC instruction to climb at 270kts below 10;000 ft. I was the PM on this flight and the First Officer was the pilot flying. SoCal requested 270 kts below 10;000 ft; after takeoff from Runway 24L. We were at a very heavy weight as we were flying LAX to PVG; so clean maneuvering was above 250 kts. ATC specifically requested 270 kts; and then later 'best rate'. I replied that we could do 270 kts. He requested that once we were above 10;000 ft he wanted best rate climb speed; then we were given normal speed somewhere between 15;000 and 18;000 ft.My experience was with previous departures from LAX; at max weight takeoff; or near max takeoff weight; our clean maneuvering speed was over 250 kts. After the flight blocked in at destination; during our post flight cockpit crew debrief; we discussed the FOM policy that we were not allowed to climb above clean maneuvering speed when below 10;000 ft. I as the Captain and the rest of the crew feel that the ATC controller led us into violating this regulation or policy.
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.