# Accident 19990814012679A: Amtr S111B, Katy, TX, August 14, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 14, 1999, 18:30 local time
- Place: Katy, TX
- Airport: Sack-O-Grande Acroport Airport
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 29.7504° N, 95.7409° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=29.7504&lon=-95.7409&mi=10
- Aircraft: N540DM (not matched to a registry record)
- Reported make and model: AMTR S111B
- Reported engine: LYC AEIO540D4A5
- People aboard: 1
- Fatal injuries: 0
- NTSB investigation: [NTSB FTW99LA228](https://openairdocs.org/ntsb/FTW99LA228) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990814012679A

## Narrative

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

ACFT EXPERIENCED ENGINE PROBLEMS, AND THE PILOT ATTEMPTED TO MAKE AN EMERGENCY LANDING AT SACK-O-GRANDE ACROPORT, THE ACFT EXPERIENCED BRAKE FAILURE ON LANDING, RAN OFF THE RWY, GROUND LOOPED, AND CAME TO REST INVERTED. (-23) ON LANDING ROLL-OUT THE AIRCRAFT HAD A LEFT BRAKE FAIL. RESULTING IN THE AIRCRAFT VEERING OFF THE RUNWAY FLIPPING OVER ON ITS BACK. (.4) THE PILOT WAS UNABLE TO MAINTAIN DIRECTIONAL CONTROL OF THE AEROBATIC BIPLANE DURING LANDING ROLL DUE TO FAILURE OF THE BRAKE MASTER CYLINDER FOR THE LEFT BRAKE.  THE PILOT REPORTED THAT HE HAD BEEN OPERATING IN THE DESIGNATED AEROBATIC BOX ABOVE THE AIRPORT FOR APPROXIMATELY 15 MINUTES, AND WHILE RECOVERING FROM A HAMMER HEAD STALL, THE PROPELLER AND ENGINE OVER SPED, AND SUSPECTING ENGINE DAMAGE, HE ELECTED TO EXECUTE A PRECAUTIONARY LANDING ON RUNWAY 27.  THE AIRPLANE TOUCHED DOWN ABOUT MID-FIELD ON THE 4,300 FOOT GRASS/SOD RUNWAY.  THE PILOT APPLIED BRAKES TO EXIT THE RUNWAY; HOWEVER, THE LEFT BRAKE FAILED, AND THE AIRPLANE 'MADE A VIOLENT TURN TO THE RIGHT.'  THE TAILWHEEL-EQUIPPED AIRPLANE NOSED OVER AND CAME TO REST IN THE INVERTED POSITION.  THE FAA INSPECTOR VERIFIED THAT THE MASTER CYLINDER FOR THE LEFT BRAKE HAD F AILED, AND BRAKING WAS NOT POSSIBLE. THE 1998 MODEL AIRPLANE HAD ACCUMULATED A TOTAL OF 160 HOURS SINCE NEW.

## 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 FTW99LA228](https://openairdocs.org/ntsb/FTW99LA228), Aug 14, 1999: Aviat S1-11B (N540DM), Katy, TX, substantial damage. Probable cause: The pilot's inability to maintain directional control of the tailwheel equipped biplane following the failure of the left brake master cylinder.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.