TailCheckTS-N149HC-20260829

OPERATIONAL RECORD·Data current to 29 Aug 2026·Limited coverage

Nothing here disqualifies this airframe. 2 windows need a records answer before you book a pre-buy.

27 continuous days on the ground, 6 Nov 2025 — 18× this aircraft's baseline. Pull the work order.

Tempo down 6%/mo since the Sep-25 peak. Ask why before you offer.

600 hr/yr366 cycles96th pctile useflew 8 days ago

Busiest monthSep-25, 27 movements

Longest gap27 days, 6 Nov 2025

Dominant city pairDallas – Washington · 23% of legs

What reads well

Lower cycle intensity for the type — 34% short hops, a lighter mission profile.

What needs an answerWhat the broker will say

The longest gap in the record — on the ground with no cause in the track.

It will be explained as scheduled maintenance. Ask for the work order number, not the explanation.

Recent tempo has eased off the record's own peak.

It will be explained as a schedule change. Ask whether the aircraft was listed before or after the slowdown started.

Key diligence findings

Measured against 493 active Gulfstream G650s

Flown far more than its peers

Top-decile utilization, sustained across the whole window - not a one-off spike.

TEMPO

96th

Monthly tempo19.3/mo · fleet 5.7/mo · 96th

Days flown per month13.8 d · fleet 4.6 d · 95th

See §02 · vs 90TH+

Finding 2 - VERIFY:A 27-day gap in the track

The longest continuous pause in the window - cause isn’t in the data.

FLAG · VERIFY

27-day gap on the ground · 6 NOV – 3 DEC 2025 · KAFW

FLAGVERIFY

FIELD: KAFW · Fort Worth Alliance
ON GROUND: 27 days (18× baseline)
PATTERN: Two short positioning hops in and out - 171 lbs/NM, consistent with a shop visit or repositioning.
CAUSE: Not knowable from the track.

INTERPRETATION CONFIDENCE - MEDIUM

The longest continuous pause in the window, at a field with MRO capacity. The gap is certain; the reason is not. A scheduled inspection and an unscheduled fix look identical from ADS-B - the work order and return-to-service settle it.

Finding 3 - CLEAR:Active, private, and steady

A legible rhythm over 18 months - one home base, no charter signature.

CLEAR

TIME & CYCLESMODELED

~950 hr · 366 cyclong legs

LONGEST GAPFLAG

27 daysKAFW, Nov 25 - cause not in data

ACTIVITY TRENDSOFT

Easingdown from the Sep 25 peak

USE TYPECLEAR

Privateno charter signature

Worth highlighting

Nearly a quarter of its flights this window have run the exact same round trip, Dallas Love Field to Washington Dulles - pointing to consistent, single-operator use, not a charter shuffle.

This aircraft vs the fleet

90TH+

Overall, this aircraft’s operating profile is broadly consistent with the Gulfstream G650 fleet. The material exception is the frequency and duration of its recent inactivity - see §05.

Against 493 active G650s, N555GA is a statistical outlier - top-decile flight tempo. The pattern is consistent, not erratic. Unusual operation, cleanly flown.

OUTLIER · 90TH+

← below fleetfleet medianabove fleet →

Monthly tempo

movements per active month

19.3/mo · Fleet 5.7/mo · 96th pctileFROM TRACK

3.4×HEAVY USE

Days flown per month

days with ≥1 movement

13.8 d · Fleet 4.6 d · 95th pctileFROM TRACK

3.0×NEAR-DAILY

Longest idle gap

peak days between flights

27 d · Fleet 10 d · 91st pctileFLAG · VERIFY

2.7×VERIFY

Est. annual hours

derived from time airborne

≈600 hr · Fleet ≈410 hr · 88th pctileMODELED

1.5×HEAVY USE

Hours-to-cycle ratio

block hours per landing · mission-profile proxy

2.6:1 · Fleet 1.9:1 · 81st pctileFROM TRACK

1.4×LOWER CYCLE INTENSITY

Short-hop share

legs under 300 nm · fewer is lower cycle intensity

34% · Fleet 52% · ≈40th pctileFROM TRACK

0.6×FEWER SHORT HOPS

Median stage length

typical leg flown · sets mission profile

984 nm · Fleet 1,380 nm · 22nd pctileFROM TRACK

0.7×SHORTER LEGS

Efficiency

CO₂ per nm vs fleet · context only

−5% · Fleet fleet avg · 28th pctileMODELED

5%CLEANER BURN

Monthly tempo

movements per active month

19.3/mo · Fleet 5.7/mo · 96th pctileFROM TRACK

3.4×▲ above

Days flown per month

days with ≥1 movement

13.8 d · Fleet 4.6 d · 95th pctileFROM TRACK

3.0×▲ above

Longest idle gap

peak days between flights

27 d · Fleet 10 d · 91st pctileFLAG · VERIFY

2.7×▲ above

Est. annual hours

derived from time airborne

≈600 hr · Fleet ≈410 hr · 88th pctileMODELED

1.5×▲ above

Hours-to-cycle ratio

block hours per landing · mission-profile proxy

2.6:1 · Fleet 1.9:1 · 81st pctileFROM TRACK

1.4×▲ above

Short-hop share

legs under 300 nm · fewer is lower cycle intensity

34% · Fleet 52% · ≈40th pctileFROM TRACK

0.6×▼ below

Median stage length

typical leg flown · sets mission profile

984 nm · Fleet 1,380 nm · 22nd pctileFROM TRACK

0.7×▼ below

Efficiency

CO₂ per nm vs fleet · context only

−5% · Fleet fleet avg · 28th pctileMODELED

5%▼ below

How to read

Bar length = how far this tail sits from the fleet median (centre) - the longer the bar, the bigger the deviation; left of centre is below the fleet, right is above. Colour reads cycle intensity only: green = lower cycle intensity, amber = verify, grey = operational exposure or mission profile (context, not a verdict). Percentiles run against 493 active G650s; shaded band = middle 50% of the fleet. From track = counted from ADS-B; Modeled = estimated from time airborne. Lifetime totals are left to the logs.

Comparable operating profiles

These are the closest-matching operating profiles among active peers - useful for sanity-checking whether this tail’s pattern is a fleet outlier or business-as-usual, not for pricing.

Tail

Operational match

Closest on

Key differenceFrom the track

N118TT

94%

tempo & recency

Longer legs - similar tempo on fuller-range missions, so fewer short-hop cycles.

N301XR

91%

mission profile & stage length

Lower utilization - same shuttle-style routes, roughly half the movements; no shop-visit gap in the window.

N44MG

88%

cycle quality & age band

Cooling tempo - comparable cycle quality, but utilization down three straight quarters.

Similarity is scored on observed operation only - utilization, stage length, cycle quality, recency. Analogue tails are illustrative sample entries.

What happened to this airframe

Nineteen months of activity against the tail’s own baseline. One month breaks the pattern - everything else is a steady rhythm that builds through 2025 and eases through 2026.

JAN25 – JUL26

Movements / month

Days flown / month

Median leg length (nm)

Ground days / month

Baseline periodRecent 6 monthsFlagged gapShaded band = each lane's own middle 50%

The read: three gaps to run down. Nothing here proves a defect - but it lets a pre-buy target specific windows instead of reconstructing 18 months blind. The same record works from either side of the table.

The longest pause in the record

27 continuous days on the ground6 Nov — 18× this aircraft's baseline

This is the one item to run down first. Neutral on its own; the records decide whether it stays neutral.

Also on the ground longer than usual

16 days, 3 Mar · 15 days, 2 May

What to request before you commit

The track reads operation, not condition or title. Everything below lives in the logs, the data room, or with your appraiser - hand this list to whoever runs the pre-buy. Naming it is the point: no flight-data product can substitute for it, and pretending otherwise is where competitors overclaim.

Engine program enrollment & current due-status - the first thing an appraiser asks for
Cabin spec, connectivity & refurbishment age
Work order & return-to-service documentation for the 27-day inactivity period at KAFW
Maintenance records covering the 16-day inactivity period at KDAL
Maintenance records covering the 15-day inactivity period at KIAD
Explanation of extended inactivity from the seller/operator, for any period outside this aircraft’s baseline
Fair value, asking price & live comps - with your appraiser
Damage history & AD/SB compliance
Title, liens & export friction

Checks at a glance

TIME & CYCLESMODELED

~950 hr · 366 cyclong legs

LONGEST GAPFLAG

27 daysKAFW, Nov 25 - cause not in data

ACTIVITY TRENDSOFT

Easingdown from the Sep 25 peak

USE TYPECLEAR

Privateno charter signature

The full record - vs-fleet outlier analysis, the 27-day gap, and the recommended records request - unlocks with TailCheck.

Want to see a finished one first? View a sample report.

TailCheck

The longest pause in the record

27 continuous days on the ground6 Nov — 18× this aircraft's baseline

This is the one item to run down first. Neutral on its own; the records decide whether it stays neutral.

Also on the ground longer than usual

16 days, 3 Mar · 15 days, 2 May

What to request before you commit

Engine program enrollment & current due-status - the first thing an appraiser asks for

Cabin spec, connectivity & refurbishment age

Work order & return-to-service documentation for the 27-day inactivity period at KAFW

Maintenance records covering the 16-day inactivity period at KDAL

Maintenance records covering the 15-day inactivity period at KIAD

Explanation of extended inactivity from the seller/operator, for any period outside this aircraft’s baseline

Fair value, asking price & live comps - with your appraiser

Damage history & AD/SB compliance

Title, liens & export friction