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B727 fails to make an altitude crossing when the overspd warning distracts the crew. The aircraft is slowed in its rate of descent to accommodate the warning which turned out to be in error.
| Attributes | |
| ACN | 397220 |
| Time | |
| Date | 199803 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : gso |
| State Reference | NC |
| Altitude | msl bound lower : 26000 msl bound upper : 26450 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : cfi |
| ASRS Report | 397220 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flight was cleared to descend to cross jaxsn intersection at FL260. During descent, aircraft 'clacker' (overspd warning) sounded approximately 20 KTS early (below barber pole). The distraction and immediate leveloff to reduce airspeed and to slow caused aircraft to arrive over jaxsn intersection approximately 450 ft high. No traffic conflict or verbalization from ATC. Jaxsn is located on the gso (greensboro) 058 degree radial at 70 DME.
Original NASA ASRS Text
Title: B727 FAILS TO MAKE AN ALT XING WHEN THE OVERSPD WARNING DISTRACTS THE CREW. THE ACFT IS SLOWED IN ITS RATE OF DSCNT TO ACCOMMODATE THE WARNING WHICH TURNED OUT TO BE IN ERROR.
Narrative: FLT WAS CLRED TO DSND TO CROSS JAXSN INTXN AT FL260. DURING DSCNT, ACFT 'CLACKER' (OVERSPD WARNING) SOUNDED APPROX 20 KTS EARLY (BELOW BARBER POLE). THE DISTR AND IMMEDIATE LEVELOFF TO REDUCE AIRSPD AND TO SLOW CAUSED ACFT TO ARRIVE OVER JAXSN INTXN APPROX 450 FT HIGH. NO TFC CONFLICT OR VERBALIZATION FROM ATC. JAXSN IS LOCATED ON THE GSO (GREENSBORO) 058 DEG RADIAL AT 70 DME.
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.