# Incident 20190703008889I: Beech 58, Englewood, CO, July 3, 2019

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 3, 2019, 11:43 local time
- Place: Englewood, CO
- Damage: Minor damage
- Phase of flight: Landing: Rollout
- Operating rules: General operating rules (Part 91)
- Location: 39.6470° N, 104.9945° W: Placed by OpenAirDocs: center of Englewood, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.6470&lon=-104.9945&mi=10
- Aircraft: N9403Q, registered now (https://openairdocs.org/aircraft/N9403Q) (OpenAirDocs)
- Registry model: Beech 58 (registry code 1152740, https://openairdocs.org/model/beech-58) (OpenAirDocs)
- Registry engine: Continental IO-520 series (registry code 17032, https://openairdocs.org/engine/continental-io-520-series) (OpenAirDocs)
- Reported make and model: BEECH 58
- Reported engine: CONT MOTOR IO 520 SERIES
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- Pilot flight hours: 14,460 total
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20190703008889I

## Narrative

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

THE AIRCRAFT HAD BEEN AT MOUNTAIN AIR AVIATION AT KBJC FOR 7 WEEKS FOR AN ANNUAL INSPECTION. AIRCRAFT RECORDS SHOW THE ANNUAL WAS COMPLETED ON JUNE 18, 2019. THE RETURN TO SERVICE WAS PERFORMED BY GREGORY JOHN BOOM, I.A. 333224. THE PIC PICKED THE AIRCRAFT UP AT 10:32 MDT FOR THE FIRST LOCAL FLIGHT OUT OF ANNUAL INSPECTION AND PERFORMED LOCAL FLIGHTS. THE AIRCRAFT HAD BEEN FLOWN FROM THE MAINTENANCE FACILITY AT KBJC TO KAPA JUNE 26, 2019 BY ONE OF THE OTHER OWNERS.

THE PIC STATED THAT HE PERFORMED A NORMAL PRE-FLIGHT, RUN UP, AND DEPARTED KAPA RUNWAY 28. THE PIC PERFORMED A FULL STOP LANDING AT KAPA RUNWAY 17L. THE PIC DEPARTED KAPA AND FLEW TO KBJC FOR 2 TOUCH AND GO?S ON RUNWAY 12R. THE PIC THEN FLEW BACK TO KAPA FOR A FULL STOP ON RUNWAY 28. THE PIC STATED THAT THE TOUCHDOWN WAS NORMAL AND JUST BEFORE THE DISTANCE MARKERS. THE PIC STATED THAT ONCE HE STARTED BRAKING, HE FELT THE WHOLE AIRCRAFT SHIMMY. THE PIC SAID THAT THE SHIMMY FELT LIKE A FLAT TIRE. AS THE AIRCRAFT DECELERATED, THE RIGHT HAND GEAR COLLAPSED. THE AIRCRAFT SLID OFF THE RUNWAY BETWEEN TAXIWAYS C3 AND C2.

THE COLLAPSED GEAR RESULTED IN DAMAGE TO THE RIGHT PROPELLER, RIGHT MAIN GEAR, RIGHT WING, FLAP ASSEMBLY ON THE RIGHT SIDE AND THE RIGHT MAIN GEAR DOOR.

AFTER THE AIRCRAFT WAS RAISED, IT WAS NOTED THAT THE RIGHT HAND MAIN TIRE DID ROTATE FREELY. THE TIRE WAS FLAT SPOTTED TO THE TUBE.

VISUAL OBSERVATIONS OF THE RIGHT MAIN TIRE, WHEEL, AND BRAKE DID NOT REVEAL ANY ABNORMAL CONDITIONS IN ADDITION TO THE FLAT TIRE.

SUBSEQUENT INSPECTION AND TEARDOWN OF THE RIGHT HAND MAIN BRAKE ASSEMBLY FOUND SEVERAL ISSUES. FIRST, THAT AN ALUMINUM SPACER INSTALLED BETWEEN THE CALIPER AND BACKING PLATES IS OF A SLIGHTLY GREATER THICKNESS THAN THE CORRECT PHENOLIC ONE PER THE IPC. SECOND, THE EXCESSIVE WEAR IN THE ORIGINAL CALIPER COULD HAVE ALLOWED THE BRAKE ASSEMBLY TO ?CATCH? ON THE GUIDE PINS ALLOWING THE PADS TO REMAIN IN PRESSURE CONTACT ON THE ROTATING DISC BUILDING ENOUGH HEAT DURING NORMAL LANDING OPERATIONS TO FURTHER DECREASE CLEARANCE FROM HEAT BUILD UP TO THE POINT OF ZERO CLEARANCE OR LOCK UP OF THE BRAKE.

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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