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B767 crew was unable to confirm the altimeter setting given by the controller because of radio problems at egll.
| Attributes | |
| ACN | 539221 |
| Time | |
| Date | 200202 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : egll.airport |
| State Reference | FO |
| Altitude | msl bound lower : 4000 msl bound upper : 8000 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : egtt.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 27l other |
| Flight Phase | descent : approach descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : egtt.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| ASRS Report | 539221 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 539220 |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : company policies non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance flight crew : returned to assigned altitude none taken : detected after the fact other |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Company Aircraft |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Altitude deviation at lhr. On descent to lhr, we used an incorrect altimeter setting. When started descent out of 8000 ft, believed controller had given '014.' a frequency change was given when passing 7000 ft. Controller on new frequency was unreadable and we could not get heading, altitude or confirm altimeter setting. Leveled off at 4000 ft. Received 1 'traffic, traffic' on TCASII -- no RA. After several communication attempts failed, switched to another radio and received instructions to climb and given correct altimeter setting which was 400 ft higher. Leveled at 4000 ft. Were given a heading and clearance to intercept localizer course and then cleared for ILS approach to runway 27L. Loss of radio communication at a critical time prevented us from confirming approach altimeter setting. No breakout or maneuvering to avoid any aircraft was needed.
Original NASA ASRS Text
Title: B767 CREW WAS UNABLE TO CONFIRM THE ALTIMETER SETTING GIVEN BY THE CTLR BECAUSE OF RADIO PROBS AT EGLL.
Narrative: ALTDEV AT LHR. ON DSCNT TO LHR, WE USED AN INCORRECT ALTIMETER SETTING. WHEN STARTED DSCNT OUT OF 8000 FT, BELIEVED CTLR HAD GIVEN '014.' A FREQ CHANGE WAS GIVEN WHEN PASSING 7000 FT. CTLR ON NEW FREQ WAS UNREADABLE AND WE COULD NOT GET HDG, ALT OR CONFIRM ALTIMETER SETTING. LEVELED OFF AT 4000 FT. RECEIVED 1 'TFC, TFC' ON TCASII -- NO RA. AFTER SEVERAL COM ATTEMPTS FAILED, SWITCHED TO ANOTHER RADIO AND RECEIVED INSTRUCTIONS TO CLB AND GIVEN CORRECT ALTIMETER SETTING WHICH WAS 400 FT HIGHER. LEVELED AT 4000 FT. WERE GIVEN A HDG AND CLRNC TO INTERCEPT LOC COURSE AND THEN CLRED FOR ILS APCH TO RWY 27L. LOSS OF RADIO COM AT A CRITICAL TIME PREVENTED US FROM CONFIRMING APCH ALTIMETER SETTING. NO BREAKOUT OR MANEUVERING TO AVOID ANY ACFT WAS NEEDED.
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.