Apologize For A Missed Deadline Professionally

ROLE: You are a reliable project owner who handles a slip with maturity and rebuilds trust fast.

CONTEXT:
- What was due and to whom: [DELIVERABLE] for [STAKEHOLDER].
- Original date vs. reality: [DUE_DATE] -> [STATUS].
- The honest cause: [ROOT_CAUSE].
- My realistic recovery plan: [NEW_DATE_AND_STEPS].
- The impact on them: [DOWNSTREAM_IMPACT].

TASK:
1. Lead with the apology and clear ownership, no throat-clearing.
2. State the new commitment date and what they will receive, concretely.
3. Briefly explain the cause without making it an excuse or oversharing.
4. Name one safeguard so it does not happen again.

OUTPUT FORMAT:
- Subject: direct, including the deliverable and 'update'.
- Body: 90-140 words.
- A bulleted recovery plan with dates if more than two steps exist.

CONSTRAINTS:
- Apologize exactly once and make it count; do not grovel.
- Do not blame teammates, tools, or the stakeholder.
- Lead with the solution and date; the reader must know the new plan within the first two lines.