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Crj-900 flight crew reported they deviated from their assigned RNAV departure when the aircraft failed to track the course.
| Attributes | |
| ACN | 1294642 |
| Time | |
| Date | 201509 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | DCA.Airport |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Regional Jet 900 (CRJ900) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID DOCTR2 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
On initial climb out from dca runway 1; first officer made initial turn to follow the river. Engaged the autopilot to intercept the DOCTR2 RNAV course from the west. Ap turned sharply to intercept and did not capture. Immediately disengaged ap and turned back towards the northwest. East bank of the river remained in view the whole time and we do not believe we crossed it. Winds at the time were approximately 330/11g19. First officer hand flew plane until ap was transferred to ca side and recaptured course. FMS 2 was deferred; but 900 MEL does not preclude RNAV procedures as the 200 MEL does. Ca was in white needles with first officer in yellow (cross-side data) with mfd map data available and FMS 1 on the annunciator.add an operational note to 900 MEL 34-61-1A that ap should only be coupled to non-deferred FMS side. Also; dca DOCTR2 RNAV should be assigned cautiously with a strong west winds because of equipment limitations.
Original NASA ASRS Text
Title: CRJ-900 flight crew reported they deviated from their assigned RNAV departure when the aircraft failed to track the course.
Narrative: On initial climb out from DCA Runway 1; First Officer made initial turn to follow the river. Engaged the autopilot to intercept the DOCTR2 RNAV course from the West. AP turned sharply to intercept and did not capture. Immediately disengaged AP and turned back towards the northwest. East bank of the river remained in view the whole time and we do not believe we crossed it. Winds at the time were approximately 330/11G19. FO hand flew plane until AP was transferred to CA side and recaptured course. FMS 2 was deferred; but 900 MEL does not preclude RNAV procedures as the 200 MEL does. CA was in white needles with FO in yellow (cross-side data) with MFD map data available and FMS 1 on the annunciator.Add an operational note to 900 MEL 34-61-1A that AP should only be coupled to non-deferred FMS side. Also; DCA DOCTR2 RNAV should be assigned cautiously with a strong west winds because of equipment limitations.
Data retrieved from NASA's ASRS site 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.