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First officer of an MD83 undershot intermediate crossing altitude during descent due to mistakenly using the wrong intersection for crossing.
| Attributes | |
| ACN | 474614 |
| Time | |
| Date | 200006 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| State Reference | VA |
| Altitude | msl bound lower : 19000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : vacating altitude |
| Route In Use | arrival star : n/s |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 4500 flight time type : 2500 |
| ASRS Report | 474614 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment other aircraft equipment : altimeter other controllera |
| Resolutory Action | controller : issued alert other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On the night of jun/xa/00, flight from slt to bwi, we were given a clearance to descend from FL280 to cross csn at FL190. The captain read back the clearance correctly to the controller, but when I agreed to cross csn at FL190 I was focusing on sacco intersection, which was 23 DME further east on the arrival. Needless to say, the captain was getting busy calling operations and reviewing how he would navigation to the gate after landing. He had not been to bwi in yrs and I had only been once. To make a long story short, we were high at csn and only realized it when the controller questioned us. Only then realizing our mistake, we asked for a vector off course to help our descent. The controller declined our request and just asked us to expedite. No conflict in traffic resulted. Lesson: better situational awareness and CRM.
Original NASA ASRS Text
Title: FO OF AN MD83 UNDERSHOT INTERMEDIATE XING ALT DURING DSCNT DUE TO MISTAKENLY USING THE WRONG INTXN FOR XING.
Narrative: ON THE NIGHT OF JUN/XA/00, FLT FROM SLT TO BWI, WE WERE GIVEN A CLRNC TO DSND FROM FL280 TO CROSS CSN AT FL190. THE CAPT READ BACK THE CLRNC CORRECTLY TO THE CTLR, BUT WHEN I AGREED TO CROSS CSN AT FL190 I WAS FOCUSING ON SACCO INTXN, WHICH WAS 23 DME FURTHER E ON THE ARR. NEEDLESS TO SAY, THE CAPT WAS GETTING BUSY CALLING OPS AND REVIEWING HOW HE WOULD NAV TO THE GATE AFTER LNDG. HE HAD NOT BEEN TO BWI IN YRS AND I HAD ONLY BEEN ONCE. TO MAKE A LONG STORY SHORT, WE WERE HIGH AT CSN AND ONLY REALIZED IT WHEN THE CTLR QUESTIONED US. ONLY THEN REALIZING OUR MISTAKE, WE ASKED FOR A VECTOR OFF COURSE TO HELP OUR DSCNT. THE CTLR DECLINED OUR REQUEST AND JUST ASKED US TO EXPEDITE. NO CONFLICT IN TFC RESULTED. LESSON: BETTER SITUATIONAL AWARENESS AND CRM.
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.