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20160610010169A

Accident · Substantial damage
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FAA accident report · Cessna 310G · Apopka, FL · June 10, 2016

FAA Aviation Safety Information Portal

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Date
June 10, 2016 · 16:10 local
Place
Apopka, FL
Airport
Orlando Apopka
Phase of flight
Landing: Rollout
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N8943Z
NTSB investigation
NTSBERA16LA213
Reported as
Cessna 310G
Reported engine
Continental I0-470 series
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificates
Airline transport, flight instructor
Pilot’s flight hours
28,000 total300 in this make and model100 in the last 90 days
N8943ZRegistration cancelled Jun 4, 2022 · Cessna 310GS/N 310G-0043Airframe modelCessna 310GEngine modelContinental I0-470 seriesReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

During landing rollout on runway 33 at Orlando Apopka Airport, left brake of aircraft failed. Due to length of runway (3,284 feet), pilot could not rollout to the end of the runway without applying brakes. Such brake application caused the aircraft to depart the right side of the runway near the end of the runway. After departing the pavement, the aircraft's nose wheel rolled up a small embankment causing the tail of the aircraft to contact the ground. Such ground contact bent the left horizontal stabilizer, causing substantial damage to the front and rear spars of the stabilizer.

During a post accident inspection and subsequent disassembly of the left brake master cylinder, observed by an FAA airworthiness inspector, numerous applications of brake pressure produced normal operation, but on infrequent occasion, the brake fluid would internally by-pass within the brake cylinder, causing loss of brake fluid pressure to the left brake caliper. The cause of such infrequent but intermittent brake fluid by-passing condition was attributed to brake seal wear and debris found within the brake fluid reservoir.

As the FAA filed it

DURING LANDING ROLLOUT ON RUNWAY 33 AT ORLANDO APOPKA AIRPORT, LEFT BRAKE OF AIRCRAFT FAILED. DUE TO LENGTH OF RUNWAY (3,284 FEET), PILOT COULD NOT ROLLOUT TO THE END OF THE RUNWAY WITHOUT APPLYING BRAKES. SUCH BRAKE APPLICATION CAUSED THE AIRCRAFT TO DEPART THE RIGHT SIDE OF THE RUNWAY NEAR THE END OF THE RUNWAY. AFTER DEPARTING THE PAVEMENT, THE AIRCRAFT'S NOSE WHEEL ROLLED UP A SMALL EMBANKMENT CAUSING THE TAIL OF THE AIRCRAFT TO CONTACT THE GROUND. SUCH GROUND CONTACT BENT THE LEFT HORIZONTAL STABILIZER, CAUSING SUBSTANTIAL DAMAGE TO THE FRONT AND REAR SPARS OF THE STABILIZER.

DURING A POST ACCIDENT INSPECTION AND SUBSEQUENT DISASSEMBLY OF THE LEFT BRAKE MASTER CYLINDER, OBSERVED BY AN FAA AIRWORTHINESS INSPECTOR, NUMEROUS APPLICATIONS OF BRAKE PRESSURE PRODUCED NORMAL OPERATION, BUT ON INFREQUENT OCCASION, THE BRAKE FLUID WOULD INTERNALLY BY-PASS WITHIN THE BRAKE CYLINDER, CAUSING LOSS OF BRAKE FLUID PRESSURE TO THE LEFT BRAKE CALIPER. THE CAUSE OF SUCH INFREQUENT BUT INTERMITTENT BRAKE FLUID BY-PASSING CONDITION WAS ATTRIBUTED TO BRAKE SEAL WEAR AND DEBRIS FOUND WITHIN THE BRAKE FLUID RESERVOIR.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB ERA16LA213Accident · No injuriesLimited investigationFinal reportApopka, FLThe intermittent failure of the left brake master cylinder, which resulted in asymmetric braking and the subsequent loss of directional control during the landing roll.Jun 10, 2016 · Substantial damage