08_TO0001_Attachment_3_Payment_Milestones.pdf

Rev.: 05/2026

Task Order 0001 Attachment 3 Solicitation 80ARC026R0007

PAYMENT MILESTONE SCHEDULE

National Aeronautics and Space Administration — Ames Research Center

Commercial Aviation Services — Airborne Science Support IDIQ (Snow4Flow EVS-4)

Task Order 0001 — Snow4Flow 2027 Campaign Startup — Firm-Fixed-Price

1. Purpose and Instructions to Offerors

This attachment establishes the payment milestones for Task Order 0001, which will be issued concurrent with contract award and satisfies the contract guaranteed minimum. Payment for this firm-fixed-price task order will be made upon completion and Government acceptance of the milestones below, in accordance with FAR 52.212-4(i), Payment. The

Contracting Officer’s Representative provides written acceptance of each milestone. Invoices must identify the contract number, task order number, milestone number, and amount.

OFFEROR: complete the Milestone Amount column. Milestone amounts must be derived from the offeror’s proposed

CLIN 0001 catalog rates applied to the quantities stated below and the offeror’s proposed other direct cost amounts, and the sum of the milestone amounts must equal the offeror’s proposed Task Order 0001 total firm-fixed price on the Attachment J-3, Pricing Tables, of the solicitation. Amounts entered here that do not reconcile to the Attachment

J-3, Pricing Tables, of the solicitation may render the offer unacceptable. The completed schedule of the successful offeror will be incorporated into Task Order 0001 at award.

2. Milestone Schedule

No. Milestone and completion criteria Government quantities Target date Milestone amount

M1 Completion of Phase 1 — instrument installation checkout and integration at the contractor’s facility, including engineering, fabrication, and certification support;

interface verification against the interface control documentation; and airworthiness release of the configured aircraft for flight.

Acceptance: Contracting Officer’s

Representative written acceptance of Phase

1 completion and the DRD-05 documentation.

3 at-base aircraft days;

engineering/fabrication/certification support, 1 job (all within CLIN

0001).

February 25, M2 Completion of Phase 2 — transit from the contractor’s facility to the Alaska deployment location and completion of initial science flight operations for the period of performance, with flight and maintenance logs delivered. Acceptance:

Contracting Officer’s Representative written acceptance of Phase 2 completion and the

DRD-01 and DRD-02 deliverables.

14 flight hours; 5 deployed aircraft days; fuel, 2,240 gallons; per diem and travel, 1 job (all within CLIN

0001).

March 2, TASK ORDER 0001 TOTAL FIRM-

FIXED PRICE

3. Notes

(a) The quantities stated above are the Government’s requirements for Task Order 0001 and are not estimates; the offeror prices these quantities at its proposed catalog rates.

(b) Shop fees are not included in any milestone. If shop fees are incurred, they will be added by task order modification and paid with the milestone in performance at the time the fees are incurred.

(c) No payment will be made for a milestone until the Contracting Officer’s Representative provides written acceptance.

(d) Task Order 0001 is non-severable and fully funded at issuance.