FMEA Results
FMEAs can be generated using the mika.kd.FMEA class, with example results from SAFECOM below:
cluster |
Phase |
Cause |
Failure Mode |
Effect |
Control Process |
Recommendations |
Frequency |
Severity |
Risk |
SAFECOM |
|---|---|---|---|---|---|---|---|---|---|---|
Battery |
Reconnaissance; Infrared Imagery |
“ b, button, not, could, issue, battery level status, showing, |
hard, landing, depleted, battery, 40 percent, battery level, sufficient power, |
dropping, 10, percent, lost, fell at close to free, fall, |
assumed manual, control, bringing it down, manually, the, ”, ua, |
batteries will be, tracked on an individual, level, be, removed |
2 |
0.333 |
0.667 |
17-0977 |
Casing dislodged |
Reconnaissance; Infrared Imagery |
fuselage, cowling on the aircraft was, missing, winds funneled under |
battery hatch cover disengaged from the, motor failsafe, activated, dirt, |
hit, motors, shut down, the, small, nick, trap the, dirt, |
propeller and battery hatch cover were, replaced, redesigning the battery |
2 |
0 |
0 |
21-0015 |
|
Communications/flight navigation with UAS failed |
External Load (Longline); Infrared Imagery |
no contact with, operation, not know about, mission, asked ops |
positive contact with a, uas operation, failed, uas, mission, not, |
flight navigation software on the computer started to, freeze, crashed, |
confirmed frequencies and mission, parameters, adequate, separation, appropriate, safety first, |
contact, gain, approvals, and planning, processes, occurred, confirm, items, lend |
2 |
0 |
0 |
18-0839 |
Employee personal drone usage without certification/official approval |
Initial Attack; Aerial Ignition (Prescribed); Reconnaissance |
did not recall any discussion of uas, use, nan, drone, |
ua, was put, the, litter |
away, not, consuming, needle |
1420 acre prescribed, burn, uas was, aerial, photography, area safety |
check the fire, activity, the, fuels, size of, fire, take |
2 |
0 |
0 |
16-0168 |
Engine Failure |
Other; Infrared Imagery |
remained in guided, mode, attempting to maintain altitude without engine, |
a33n engine, failed, aircraft, failure of the, piston, engine to, |
was, aircraft then, spiral, and, crashed, ground, quit, extensive, damage |
aircraft, landing, monitoring the, visually, crash was, located, within the, |
replace, replace current mission planner, messaging, with, update mission, planner, |
3 |
0.5 |
1.5 |
20-0822 |
Fight plan error |
Air Attack; Reconnaissance; Infrared Imagery |
location of the, fire, placement of the launch, angle of |
uas aggressively changed its angle of, attack, and, pitched, down, |
ground, sustained, significant, damage, higher, of, impact to the, wilderness, |
heat, flight, safety and operational, briefing, area, in charge, pic |
detect any, remaining, map their, perimeters, provide, imagery, thorough, double, |
3 |
0.5 |
1.5 |
19-0489 |
Hang Fire |
Aerial Ignition |
form of, visible, hang fire, functioned, melted, sphere, was still |
a, hang, fire, on, aircraft gave a, hatch motion, error, |
in, flight, fires |
vo assisted the pilot, resetting the ignis per, took control |
follow, immediately using the, camera, identify any, ensure that you |
1 |
0 |
0 |
20-0872 |
High wind pushes UAS off course |
Reconnaissance |
propeller, strike, side gust of, hit a, landing, composite tip |
wind, off, target, ground was, struck, breaking the tips of |
in guided, mode, automated rtl, landing, area, opening, propeller strike, |
relocate, larger, area, clear of all, obstacles, sent, the, inspected |
2 |
0.5 |
1 |
18-0847 |
|
Hobbyist offers services |
Initial Attack |
mission, no, t |
fire, department, camera - equipped, drone, was notified of the, |
fly, will not be, allowed, faa, accreditation, federal fire, managers, |
1 |
0 |
0 |
15-0166 |
||
Inappropriate Landing Site |
Infrared Imagery |
pilot was landing on the landing, pad, black, trim |
portion of the skid landed on the, ” ), rise, |
landing, upside, minor, damage, to, rotors |
lift, pic, moving both sticks to forward |
taking, more time to, level out uneven, surfaces, procedures, land |
1 |
1 |
1 |
21-0761 |
Landing Gear Failure |
Aerial Ignition |
position, screws that hold the landing gear servo, had become, |
lift the landing gear, flight, failed to, raise, right side |
the landing, gear |
through the preflight, checklist, manually cycle the landing, lower the, |
1 |
0 |
0 |
20-0495 |
|
Loss of GCS |
Aerial Ignition; Reconnaissance; Infrared Imagery |
error, combination, thermal, signal, controller and, feedback, gcs did not |
in flight, failure, gsc, disconnection, error, video, loss, motor, wine, |
immediately, ignis, warning, crash from, separated, motor, home, not, turned, |
reset the home, point, noted the gps, location, up, plan, |
management, pulling flight logs and, video, ensure that, are, done, |
3 |
0.333 |
1 |
21-0172 |
Loss of GPS on UAS |
Other; Reconnaissance; Infrared Imagery |
erratic, nose of the aircraft was pointed at, lack of |
of, solo made contact with, solo lost, gps, winds, battery |
experienced loss, gps, tree, loss of, control, and, crash, shifted, |
autonomous, regain manual flight, control, initiate “ return to home, |
should have been, suspended, or, cancelled, having eyes on the, |
3 |
0.4 |
1.2 |
21-0138 |
Loss of LOS |
Aerial Ignition |
had, lost, of the aircraft, position, and the, pad, could |
with a, broken, broken arm locking, ignis housing was, cracked, |
aircraft, collided, tree, tilted and, fell about 15’to the, ground, |
a hand held led, light, spot the, pad, exactly, analysis |
having the, visual observer 90, degrees, off of the landing, |
1 |
1 |
1 |
20-0949 |
Loss of control |
Reconnaissance; Infrared Imagery |
left wing aileron servo was, sticking, aircraft, hit, wall, refused, |
rapid and uncommanded, descent, roll and, aircraft, to quickly lose, |
steep, aircraft, dropped and hit the, feed and connection was, |
no, monitored instruments, programmed flight, terminate, land, troubleshoot, reviewing the |
be, inspected and, tested, at, facility, , compass and, micro, |
3 |
0.667 |
2 |
20-1042 |
Manned Aircraft Intrusion |
Infrared Imagery |
altitude, aircraft, no tail, tower did not recognize the description |
tfr, inc, aircraft operating, turned north, of, di, was, aircraft |
lost, visual, northwest, presence, , the |
preflight checklist /, inspection, a controls, check, held position, land |
made, and, avoid, discussed, being, vigilant, in listening and looking |
3 |
0 |
0 |
20-1098 |
Motor Mount Failure |
Aerial Ignition; Infrared Imagery |
m600 motor mount, separation, motor was, the motor, mount, via, |
flight failure to, went into, uncontrolled, ya, impacted the, dangling |
loss of, control, impacted, terrain, aircraft, ground, damaging landing gear |
maintenance, performed, lander gear, full, notification, quickly, strong field, work, |
reduce the payload, weight, reduction of number of balls to, |
3 |
1 |
3 |
21-0876 |
Motor failure |
Reconnaissance |
failed attempts to control the left, positive connection, right rear |
right rear motor, failed, ya, of, motors, failing, inputs for, |
arch and, melt the surrounding, plastic, melted the left, damage, |
aircraft was re positioned over the, road, landed, screw, multiple |
thorough, inspection |
3 |
1 |
3 |
19-0519 |
Parachute Landing Failure |
Infrared Imagery |
chu, fully, parachute was packed, incorrectly, drogue chute was packed |
deploy, partial, opening, the, canopy |
hard, fuselage was, damaged, e, been |
checked all parachute, on, confirmed proper |
site, packing, use a, buddy, check |
1 |
1 |
1 |
18-0821 |
Pilot Error |
Aerial Ignition; Infrared Imagery |
intense, smoke, cover, were, line, resources had departed, line early, |
fire, growth, indirect, crews, pulled off the, the, would, be, |
significant, impacted, multiple, sl, overs, not be, returning in a, |
) infrared, video and ir, resource was, awoken and asked |
access, overs, imagery, and emergency, protocols, thoroughly, plan and, coordinate |
3 |
0.5 |
1.5 |
21-0934 |
Pins or needles dislodged |
Aerial Ignition; Reconnaissance |
mounted, position, space, pins, had, loose, no longer, place, vibrating |
red puncture motion, error, puncture needle was dislodged from its, |
damage, abnormalities |
error, stayed within the burn, unit, initiated the emergency release, |
inspect the, needles, to, incorporating a needle, check, evaluation, be, |
3 |
0 |
0 |
21-0169 |
Propellor arm disconnect (sheared bolt heads or snaps) |
Aerial Ignition; Aerial Ignition (Prescribed); Infrared Imagery |
heads on a propeller bolt had, normal, aircraft, having difficulty |
missing, separate bolt head had, sheared, loud, piece of, unknown, |
snap, descended and, impacted the, ground, 4, propeller, where, flight |
photo, was, propeller assembly was, rebuilt, test flight, full, inspections, |
check propeller, bolts, and, document all bolt, failures, and potential |
3 |
1 |
3 |
19-0298 |
UAS Intrusion |
Water Drop (Helicopter Bucket); Aerial Ignition; Passenger Transport; Aerial Ignition (Prescribed); Helitack; Initial Attack; Other; Retardant; Air-Attack (Prescribed); External Load (Longline); Water Drop (Fixed Wing); Retardant Drop (SEAT); Air Attack; Retardant Drop (Airtanker); Water Drop (Helicopter Fixed-Tank); Leadplane; Reconnaissance |
system, heavy, smoke, erratic fire, conditions, recreational, ua, dropping, water, |
firefighters, a, recreational type unmanned aircraft system { ua, }, |
immediately, cease, leave the, catastrophic, flew out of, sight, ceased, |
tfr was put in place, was, ua, confronted, and, removed, |
wide circulation of, events, go, taken, maintain visual on, documented, |
4 |
0.067 |
0.269 |
16-0657 |
UAS airspace separation issue |
Aerial Ignition; Other; Infrared Imagery |
stationary, hove, clearance, altered, hovering ( stationary, at, pitching, the |
unmanned aerial, came in close proximity of one, another, visual |
passed by the, ua, attack, halted the su, momentarily, , |
aerial supervision was in place, were made aware of the |
see and, avoid, all incident aircraft should, , same altitude, |
3 |
0 |
0 |
21-0774 |
1 |
1 |
1 |
21-0859 |