# Accident 20170331003129A: Louis W Ott 601XL-B, The Dalles, OR, March 31, 2017

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 31, 2017, 15:55 local time
- Place: The Dalles, OR
- Damage: Substantial damage
- Phase of flight: Landing: Approach
- Operating rules: General operating rules (Part 91)
- Location: 45.6181° N, 121.1675° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=45.6181&lon=-121.1675&mi=10
- Aircraft: N610TT, a cancelled registration (https://openairdocs.org/deregistered/N610TT-2017-08-14) (OpenAirDocs)
- Registry model: Louis W OTT 601XL-B (registry code 056314C, https://openairdocs.org/model/louis-w-ott-601xl-b) (OpenAirDocs)
- Registry engine: Aeromax 100 IFB (registry code 00550, https://openairdocs.org/engine/aeromax-100-ifb) (OpenAirDocs)
- Reported make and model: LOUIS W OTT 601XL-B
- Reported engine: AEROMAX 100IFB 3250
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 2
- Pilot certificates: Commercial pilot
- Pilot flight hours: 1,662 total, 129 in this make and model, 3 in the last 90 days
- NTSB investigation: [NTSB WPR17LA082](https://openairdocs.org/ntsb/WPR17LA082) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20170331003129A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

THE AIRCRAFT WAS CLIMBING THROUGH 3500 FEET WHEN THE ENGINE EXPERIENCED A LOSS OF POWER AND DECREASE IN RPM OF APPROXIMATELY 200. THE PILOT ELECTED TO RETURN TO HIS HOME AIRPORT WHICH WAS 3 MILES AWAY.  THE ENGINE WAS RUNNING AND RESPONSIVE TO THROTTLE INPUTS.  THE PILOT ENTERED A NORMAL TRAFFIC PATTERN AND WHEN TURNING TO THE BASE LEG HE REALIZED THE AIRCRAFT WAS TOO LOW.  THE PILOT ADDED POWER BUT THE RESPONSE FROM THE ENGINE WAS INSUFFICIENT TO CHECK THE DESCENT.   THE AIRCRAFT HIT THE GROUND APPROXIMATELY 500 FEET SHORT OF THE DISPLACED THRESHOLD OF THE RUNWAY 31. IT REMAINED UPRIGHT AND THERE WAS NO POST-CRASH FIRE.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR17LA082](https://openairdocs.org/ntsb/WPR17LA082), Mar 31, 2017: OTT 601XL-B (N610TT), The Dalles, OR, substantial damage. Probable cause: A partial loss of engine power due to the reverse bending fatigue failure of the propeller hub bolts, which resulted from the bolts not fitting tightly into the propeller hub holes. Also causal was…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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