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B737 flight crew reported receiving a terrain warning after descending 200 feet low on a night approach to rno in an area of rising terrain.
| Attributes | |
| ACN | 1489768 |
| Time | |
| Date | 201710 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | RNO.Airport |
| State Reference | NV |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Altitude Overshoot Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT |
Narrative:
On our downwind vector to runway xxr we were extended for traffic on final. We were told to slow; follow traffic; and were cleared for the visual approach. We extended the final and put 5500 in the altitude window. I was watching the spacing on the traffic while configuring with flaps 15 and gear down. About two miles and at 5500; I disconnected the autopilot. I was concentrating on the runway and traffic and did not notice the sink develop after disconnecting the autopilot. The first officer alerted me to it but I was already about 200 ft low as I started a smooth correction. Due to the uneven rising terrain we received a single 'caution terrain' alert. I increased the power and climb rate and there were no other alerts. I mistakenly continued the approach and landed. In that split second I forgot the requirement to go-around if the caution is received at night.
Original NASA ASRS Text
Title: B737 flight crew reported receiving a terrain warning after descending 200 feet low on a night approach to RNO in an area of rising terrain.
Narrative: On our downwind vector to Runway XXR we were extended for traffic on final. We were told to slow; follow traffic; and were cleared for the visual approach. We extended the final and put 5500 in the altitude window. I was watching the spacing on the traffic while configuring with flaps 15 and gear down. About two miles and at 5500; I disconnected the autopilot. I was concentrating on the runway and traffic and did not notice the sink develop after disconnecting the autopilot. The FO alerted me to it but I was already about 200 ft low as I started a smooth correction. Due to the uneven rising terrain we received a single 'Caution Terrain' alert. I increased the power and climb rate and there were no other alerts. I mistakenly continued the approach and landed. In that split second I forgot the requirement to go-around if the caution is received at night.
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.