B737-300
Flight Crew Last 90 Days 64
Human-Machine Interface
Deviation - Speed All Types; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Aircraft Automation Overrode Flight Crew; Flight Crew Returned To Clearance; Flight Crew Became Reoriented
Human Factors; Aircraft
SoCal Departure deleted the 7;000 foot hold-down at the POM VOR and cleared us to climb to 14;000 feet. The pilot not flying spun 14;000 in the MCP since I had not yet engaged the autopilot. Neither of us remembered to delete the 7;000B in the FMC. At approximately 6;000 feet; I engaged the autopilot and VNAV; respectively. At 7;000 feet; the aircraft began to level off (and accelerate since [we had no auto thrust]. I disengaged the autopilot and raised the nose to resume the climb. During this sequence; the airspeed accelerated to approximately 275 KIAS below 10;000 feet. When the aircraft slowed to 250 KIAS; I re-engaged the autopilot and VNAV; respectively and flew the rest of the leg uneventfully. Habit patterns of adjusting the MCP and FMC before confirming that a clearance has been complied with.
Climbing out at 250 knots on the POMONA 7 SID with VNAV and autopilot engaged. Flight was cleared for an unrestricted climb to 14;000 feet. We failed to remove the 7000 FT restriction at POM from the FMC and the aircraft started to level off. As it started leveling off; the aircraft accelerated to 280 knots due to not reducing the throttles from climb thrust. The pilot flying changed modes to Vertical Speed and reduced power after the pilot not flying called out the speed deviation. Airspeed was reduced to 250 knots and VNAV re-engaged after deleting the POM alt restriction of 7000B.
B737-300 flight crew reports exceeding 250 knots below 10000 feet when ATC deletes a crossing restriction on the POMONA7 SID and the crew dials in the new assigned altitude on the MCP but forgets to delete the restriction in the FMC. The aircraft attempts to level off for the restriction and accelerate above 250 knots due to inoperative auto thrust.