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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier flight crew failed to follow the prescribed visual flight path to the runway when they became distraction during a high approach descent and flew aircraft into a stall warning envelope.
| Attributes | |
| ACN | 203587 |
| Time | |
| Date | 199203 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw tower : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent : approach |
| Route In Use | approach : visual arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 130 flight time total : 5000 flight time type : 1000 |
| ASRS Report | 203587 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Out of 11000, cleared 280 degree heading intercept runway 31R localizer, cleared stadium visual approach descend 3000 ft (via several steps, but was able to descend on GS 31R) intercepted localizer and saw stadium slightly to the right of localizer and headed towards it. Approach came back stating 'join the localizer for descent, cleared stadium, etc.' returned to localizer power off clean 250 KT assigned descent. When instructed to reduce to 210 KTS, automatic throttles would not allow speed reduction below 230 KTS (calculated clean min maneuver speed 216 KTS). Automatic throttles off, instructed to slow to 180 KTS, attention diverted to question of at angle of attack calculation vs expected aircraft weight, a little late turning toward stadium, leveling 3000, slats selected at 200 KTS (185 KT min slat extension speed) stall warning activates, maximum power, level wings (I've now forgotten about the stadium) retract speed brake, extend flaps, assist situation. The aircraft is ok, but the stadium is at our 5 O'clock, we're 3000 ft (high) 180 KTS (fast) closing aircraft ahead (he went the long way). Approach calls and suggests that we break off the stadium approach and go to tower, which we did, and landed with maximum flap confign after a couple of south turns. The only lesson I see is always expect the unexpected.
Original NASA ASRS Text
Title: ACR FLC FAILED TO FOLLOW THE PRESCRIBED VISUAL FLT PATH TO THE RWY WHEN THEY BECAME DISTR DURING A HIGH APCH DSCNT AND FLEW ACFT INTO A STALL WARNING ENVELOPE.
Narrative: OUT OF 11000, CLRED 280 DEG HDG INTERCEPT RWY 31R LOC, CLRED STADIUM VISUAL APCH DSND 3000 FT (VIA SEVERAL STEPS, BUT WAS ABLE TO DSND ON GS 31R) INTERCEPTED LOC AND SAW STADIUM SLIGHTLY TO THE R OF LOC AND HEADED TOWARDS IT. APCH CAME BACK STATING 'JOIN THE LOC FOR DSCNT, CLRED STADIUM, ETC.' RETURNED TO LOC PWR OFF CLEAN 250 KT ASSIGNED DSCNT. WHEN INSTRUCTED TO REDUCE TO 210 KTS, AUTO THROTTLES WOULD NOT ALLOW SPD REDUCTION BELOW 230 KTS (CALCULATED CLEAN MIN MANEUVER SPD 216 KTS). AUTO THROTTLES OFF, INSTRUCTED TO SLOW TO 180 KTS, ATTN DIVERTED TO QUESTION OF AT ANGLE OF ATTACK CALCULATION VS EXPECTED ACFT WT, A LITTLE LATE TURNING TOWARD STADIUM, LEVELING 3000, SLATS SELECTED AT 200 KTS (185 KT MIN SLAT EXTENSION SPD) STALL WARNING ACTIVATES, MAX PWR, LEVEL WINGS (I'VE NOW FORGOTTEN ABOUT THE STADIUM) RETRACT SPD BRAKE, EXTEND FLAPS, ASSIST SITUATION. THE ACFT IS OK, BUT THE STADIUM IS AT OUR 5 O'CLOCK, WE'RE 3000 FT (HIGH) 180 KTS (FAST) CLOSING ACFT AHEAD (HE WENT THE LONG WAY). APCH CALLS AND SUGGESTS THAT WE BREAK OFF THE STADIUM APCH AND GO TO TWR, WHICH WE DID, AND LANDED WITH MAX FLAP CONFIGN AFTER A COUPLE OF S TURNS. THE ONLY LESSON I SEE IS ALWAYS EXPECT THE UNEXPECTED.
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.