Dispatch Desk · Deductions Defence Pack (DDP) · Worked example Aldgate Borough Council · 42 buildings · 180 calls/mo · TKT-2026-03847 threaded · May 2026 (Month 18) · SLA 96.7% · DDP defended £800
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Deductions Defence Pack

Evidence-backed defence against SLA deduction on TKT-03829. Full timeline, GPS evidence, contractual reference, call logs, and recommended response.

CLIENT
Aldgate Borough Council · 42 buildings
REFERENCE
ALD-DDP-03829
PREPARED BY
Sentinel FM Ltd (via Built AI)
PERIOD
May 2026 · Month 18
DEDUCTION DEFENCE — TKT-03829

P2 Boiler Failure — Keyholder Delay Defence

Aldgate BC has raised a £250 P2 deduction on TKT-03829 (boiler failure at Parkside Library, 9 May). Sentinel FM is defending on the basis that the engineer arrived within the SLA response window but was denied access due to the client's keyholder arriving 45 minutes late.

TKT-2026-03829 Deduction Defence Pack

TICKET
TKT-2026-03829 — Boiler failure (no heating/hot water), Parkside Library, Elm Grove, M5 3JA
PRIORITY
P2 URGENT — Response target: 4 hours. Fix target: 8 hours.
DEDUCTION
£250 — P2 response breach. Client records response as 4h45m (exceeds 4h target by 45 mins).
TIMELINE
09:02 — Call received. Boiler not firing, no heating or hot water. Logged as P2.
09:08 — Dispatched to D. Okonkwo (van 14, nearest with HVAC competency).
09:12 — Acknowledged by engineer. ETA: 12:00.
12:12 — Engineer arrived at Parkside Library. GPS timestamp: 3hr 10min from call receipt.
12:12 — Building locked. No keyholder present. Engineer status set to "waiting for keyholder."
12:15 — Engineer called caretaker (Mr P. Gallagher) — no answer.
12:30 — Second call to caretaker — answered. Confirmed en route, ETA 15 mins.
12:57 — Caretaker arrived. Building unlocked. Keyholder delay: 45 minutes.
13:47 — Fix completed (ignition module replaced). Total time from access: 50 mins.
DEFENCE BASIS
Contract Schedule 4, clause 8.3(b): "Where access to a building is dependent on a third party providing keys, access codes or physical access, the Service Provider's SLA response clock shall pause from the point of arrival at the building until the point at which access is provided." The engineer arrived at 3h10m — within the 4h target. The 45-minute delay was caused by the client's keyholder, not by Sentinel FM.
EVIDENCE
1. Engineer GPS arrival timestamp (12:12, 3h10m)
2. Engineer app status log ("waiting for keyholder" from 12:12)
3. Call log to caretaker: 12:15 (no answer), 12:30 (answered)
4. Caretaker arrival logged: 12:57
5. Photo of locked building entrance (timestamped 12:13)
6. Fix completion timestamp: 13:47 (50 mins from access — well within 8hr fix target)
REQUEST
Reverse £250 deduction. Engineer response was within SLA. Delay was client-side. If keyholder access time is excluded per clause 8.3(b), the effective response time is 3h10m — 50 minutes inside the 4hr target.
STATUS
Submitted to H. Marsden (Aldgate BC) 16 May 2026. Response pending.

Ref: ALD-DDP-03829 · Period: May 2026

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