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CRJ200 flight crew reports being cleared to line up and wait on runway 27R at atl; then noting an 'EFIS comp mon' caution message....and 3 red flags on captain's pfd. The crew taxies clear of the runway and the problem disappears. The next attempt at takeoff is successful. The captain believes the rebar in the new runway extension is causing interference with the aircraft compass system [ahrs].
| Attributes | |
| ACN | 1089788 |
| Time | |
| Date | 201305 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ATL.Airport |
| State Reference | GA |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Component | |
| Aircraft Component | AHRS/ND |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
We were cleared to taxi into position and hold for wake turbulence due to prior heavy aircraft departure. Due to the large amount of rebar used in the new runway addition on 27R; we received a nuisance fault message. We told the tower that we could not accept a takeoff clearance and asked to taxi off of the runway. The fault cleared before we exited the runway. We got back into line and departed a short time later without any abnormalities. The thrust levers were never advanced for the purpose of takeoff. In hindsight; I should have contacted maintenance control and possibly documented the nuisance fault. Being that the fault cleared itself so quickly; we did believe that it was an issue. Since the thrust levers were never advanced for the purpose of takeoff; we did not feel the need to notify the company via filing a report.
Original NASA ASRS Text
Title: CRJ200 flight crew reports being cleared to line up and wait on Runway 27R at ATL; then noting an 'EFIS COMP MON' caution message....and 3 red flags on Captain's PFD. The crew taxies clear of the runway and the problem disappears. The next attempt at takeoff is successful. The Captain believes the rebar in the new runway extension is causing interference with the aircraft compass system [AHRS].
Narrative: We were cleared to taxi into position and hold for wake turbulence due to prior heavy aircraft departure. Due to the large amount of rebar used in the new runway addition on 27R; we received a nuisance fault message. We told the Tower that we could not accept a takeoff clearance and asked to taxi off of the runway. The fault cleared before we exited the runway. We got back into line and departed a short time later without any abnormalities. The thrust levers were never advanced for the purpose of takeoff. In hindsight; I should have contacted Maintenance Control and possibly documented the nuisance fault. Being that the fault cleared itself so quickly; we did believe that it was an issue. Since the thrust levers were never advanced for the purpose of takeoff; we did not feel the need to notify the company via filing a report.
Data retrieved from NASA's ASRS site as of July 2013 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.