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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier on oceanic flight has both omegas malfunction while out of radar range. About 65 mi east of course when radar resumed. Vectored to destination.
| Attributes | |
| ACN | 218452 |
| Time | |
| Date | 199208 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : chs |
| State Reference | SC |
| Altitude | msl bound lower : 29000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors enroute airway : zma |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 7300 flight time type : 300 |
| ASRS Report | 218452 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Departed clt for san juan at XA15 local time, over charleston, sc. Checked omega navigation system #1 dead on #2 slightly off but in limits at loss of radar contact jax ARTCC gave position 22 mi southwest of smelt intersection. #1 omega showed 25 mi southwest of smelt, #2 further off. Flight continued on #1 since it showed closer to correct. When radar established, position was approximately 65 mi east of course. Continued to sju on radar vectors. On arrival at sju #1 omega approximately 100 mi off east of course, #2 85 mi west of course. #1 omega had been repaired in clt before departure. I would feel better if omega required to fly 1 full leg before overwater dispatch.
Original NASA ASRS Text
Title: ACR ON OCEANIC FLT HAS BOTH OMEGAS MALFUNCTION WHILE OUT OF RADAR RANGE. ABOUT 65 MI E OF COURSE WHEN RADAR RESUMED. VECTORED TO DEST.
Narrative: DEPARTED CLT FOR SAN JUAN AT XA15 LCL TIME, OVER CHARLESTON, SC. CHKED OMEGA NAV SYS #1 DEAD ON #2 SLIGHTLY OFF BUT IN LIMITS AT LOSS OF RADAR CONTACT JAX ARTCC GAVE POS 22 MI SW OF SMELT INTXN. #1 OMEGA SHOWED 25 MI SW OF SMELT, #2 FURTHER OFF. FLT CONTINUED ON #1 SINCE IT SHOWED CLOSER TO CORRECT. WHEN RADAR ESTABLISHED, POS WAS APPROX 65 MI E OF COURSE. CONTINUED TO SJU ON RADAR VECTORS. ON ARR AT SJU #1 OMEGA APPROX 100 MI OFF E OF COURSE, #2 85 MI W OF COURSE. #1 OMEGA HAD BEEN REPAIRED IN CLT BEFORE DEP. I WOULD FEEL BETTER IF OMEGA REQUIRED TO FLY 1 FULL LEG BEFORE OVERWATER DISPATCH.
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.