Date: 201403
Local time of day: 1201-1800
Location: SCT.TRACON, CA
Flight conditions: Marginal
Aircraft: A300
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Cargo / Freight / Delivery
Flight phase: Descent
Airspace: Class E SCT
ATC / advisory: TRACON SCT
Aircraft component: Autoflight System
Component problem: Improperly Operated
Reporter organization: Air Carrier
Reporter function: First Officer; Pilot Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP)
Human factors: Human-Machine Interface; Situational Awareness; Distraction
Second reporter function: Pilot Not Flying; Captain
Anomaly: Deviation - Speed All Types; Deviation / Discrepancy - Procedural FAR; Flight Deck / Cabin / Aircraft Event Other / Unknown
Detector: Person Flight Crew
When detected: In-flight
Result: Flight Crew Became Reoriented; Flight Crew Overcame Equipment Problem
Contributing factors: Aircraft; Human Factors; Procedure
Primary problem: Human Factors

Narrative: LA Center cleared us to maintain 280 KTS and cross JACKK at 10;000 FT on the LYNDI RNAV STAR into SAN. The [tactical] speed of 280K was [entered] into the FMS. We checked on with SoCal Approach just prior to JACKK as we were descending who then cleared us to descend via LYNDI and; after LYNDI; cleared RNAV 27 into SAN. After receiving the new clearance and before leveling at 10;000 FT I changed the altitude preselect to 5;000 FT; the lowest altitude on the arrival. Since we were cleared for the approach; I selected LVL Change so we could arm the Final Approach mode. I looked at the FMS to confirm the Final Approach mode was activated. Captain then reminded me about 280 tactical speed and that is when I looked at the altimeter and saw 9;300 FT. I disconnected autopilot and slowed to 250 KTS. SoCal never queried us on our airspeed. I erred by selecting 5;000 FT in the altitude preselect before leveling at 10;000 FT and forgetting the ATC assigned speed. I was distracted by frequency change at JACKK; being cleared for the approach that far away from the airport and confirming Final Approach mode was activated.I should not have changed the altitude preselect from 10;000 FT until verifying airspeed was 250 KTS or less.


Second narrative: ...Then; shortly after; Center cleared us to JACKK and to arrive at this fix at 10;000 FT. Speed in the descent 280 KIAS. I tact moded 280 in the FMS; confirmed by First Officer. First Officer armed 10;000 FT I confirmed. ...As we arrived at the fix JACKK; ATC cleared us for the RNAV 27 approach via the LYNDI arrival. We got a frequency change at the same time with the clearance. The First Officer armed the altitude of 5;000 feet to arrive at the fix LYNDI to start the RNAV approach for Runway 27. I confirmed. ...The aircraft started to descend at 280 KTS. Neither of us realized that we were exceeding 250 KTS below 10;000 feet.


Synopsis: While descending on the LYNDI RNAV STAR to SAN at an assigned tactical speed of 280 KTS the First Officer inadvertently set the altitude alert at 5;000 FT for the crossing at LYNDI when cleared for the RNAV Runway 27 approach; forgetting to reset the airspeed to comply with the 250 KTS restriction below 10;000 FT.